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Description: Given a piecewise smooth function F , the derived function H has a limit at the lower bound of each interval of the partition Q . (Contributed by Glauco Siliprandi, 11-Dec-2019)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | fourierdlem75.xre | ⊢ ( 𝜑 → 𝑋 ∈ ℝ ) | |
| fourierdlem75.p | ⊢ 𝑃 = ( 𝑚 ∈ ℕ ↦ { 𝑝 ∈ ( ℝ ↑m ( 0 ... 𝑚 ) ) ∣ ( ( ( 𝑝 ‘ 0 ) = ( - π + 𝑋 ) ∧ ( 𝑝 ‘ 𝑚 ) = ( π + 𝑋 ) ) ∧ ∀ 𝑖 ∈ ( 0 ..^ 𝑚 ) ( 𝑝 ‘ 𝑖 ) < ( 𝑝 ‘ ( 𝑖 + 1 ) ) ) } ) | ||
| fourierdlem75.f | ⊢ ( 𝜑 → 𝐹 : ℝ ⟶ ℝ ) | ||
| fourierdlem75.x | ⊢ ( 𝜑 → 𝑋 ∈ ran 𝑉 ) | ||
| fourierdlem75.y | ⊢ ( 𝜑 → 𝑌 ∈ ( ( 𝐹 ↾ ( 𝑋 (,) +∞ ) ) limℂ 𝑋 ) ) | ||
| fourierdlem75.w | ⊢ ( 𝜑 → 𝑊 ∈ ℝ ) | ||
| fourierdlem75.h | ⊢ 𝐻 = ( 𝑠 ∈ ( - π [,] π ) ↦ if ( 𝑠 = 0 , 0 , ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) ) | ||
| fourierdlem75.m | ⊢ ( 𝜑 → 𝑀 ∈ ℕ ) | ||
| fourierdlem75.v | ⊢ ( 𝜑 → 𝑉 ∈ ( 𝑃 ‘ 𝑀 ) ) | ||
| fourierdlem75.r | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝑅 ∈ ( ( 𝐹 ↾ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) limℂ ( 𝑉 ‘ 𝑖 ) ) ) | ||
| fourierdlem75.q | ⊢ 𝑄 = ( 𝑖 ∈ ( 0 ... 𝑀 ) ↦ ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ) | ||
| fourierdlem75.o | ⊢ 𝑂 = ( 𝑚 ∈ ℕ ↦ { 𝑝 ∈ ( ℝ ↑m ( 0 ... 𝑚 ) ) ∣ ( ( ( 𝑝 ‘ 0 ) = - π ∧ ( 𝑝 ‘ 𝑚 ) = π ) ∧ ∀ 𝑖 ∈ ( 0 ..^ 𝑚 ) ( 𝑝 ‘ 𝑖 ) < ( 𝑝 ‘ ( 𝑖 + 1 ) ) ) } ) | ||
| fourierdlem75.g | ⊢ 𝐺 = ( ℝ D 𝐹 ) | ||
| fourierdlem75.gcn | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝐺 ↾ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) : ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⟶ ℂ ) | ||
| fourierdlem75.e | ⊢ ( 𝜑 → 𝐸 ∈ ( ( 𝐺 ↾ ( 𝑋 (,) +∞ ) ) limℂ 𝑋 ) ) | ||
| fourierdlem75.a | ⊢ 𝐴 = if ( ( 𝑉 ‘ 𝑖 ) = 𝑋 , 𝐸 , ( ( 𝑅 − if ( ( 𝑉 ‘ 𝑖 ) < 𝑋 , 𝑊 , 𝑌 ) ) / ( 𝑄 ‘ 𝑖 ) ) ) | ||
| Assertion | fourierdlem75 | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝐴 ∈ ( ( 𝐻 ↾ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fourierdlem75.xre | ⊢ ( 𝜑 → 𝑋 ∈ ℝ ) | |
| 2 | fourierdlem75.p | ⊢ 𝑃 = ( 𝑚 ∈ ℕ ↦ { 𝑝 ∈ ( ℝ ↑m ( 0 ... 𝑚 ) ) ∣ ( ( ( 𝑝 ‘ 0 ) = ( - π + 𝑋 ) ∧ ( 𝑝 ‘ 𝑚 ) = ( π + 𝑋 ) ) ∧ ∀ 𝑖 ∈ ( 0 ..^ 𝑚 ) ( 𝑝 ‘ 𝑖 ) < ( 𝑝 ‘ ( 𝑖 + 1 ) ) ) } ) | |
| 3 | fourierdlem75.f | ⊢ ( 𝜑 → 𝐹 : ℝ ⟶ ℝ ) | |
| 4 | fourierdlem75.x | ⊢ ( 𝜑 → 𝑋 ∈ ran 𝑉 ) | |
| 5 | fourierdlem75.y | ⊢ ( 𝜑 → 𝑌 ∈ ( ( 𝐹 ↾ ( 𝑋 (,) +∞ ) ) limℂ 𝑋 ) ) | |
| 6 | fourierdlem75.w | ⊢ ( 𝜑 → 𝑊 ∈ ℝ ) | |
| 7 | fourierdlem75.h | ⊢ 𝐻 = ( 𝑠 ∈ ( - π [,] π ) ↦ if ( 𝑠 = 0 , 0 , ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) ) | |
| 8 | fourierdlem75.m | ⊢ ( 𝜑 → 𝑀 ∈ ℕ ) | |
| 9 | fourierdlem75.v | ⊢ ( 𝜑 → 𝑉 ∈ ( 𝑃 ‘ 𝑀 ) ) | |
| 10 | fourierdlem75.r | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝑅 ∈ ( ( 𝐹 ↾ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) limℂ ( 𝑉 ‘ 𝑖 ) ) ) | |
| 11 | fourierdlem75.q | ⊢ 𝑄 = ( 𝑖 ∈ ( 0 ... 𝑀 ) ↦ ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ) | |
| 12 | fourierdlem75.o | ⊢ 𝑂 = ( 𝑚 ∈ ℕ ↦ { 𝑝 ∈ ( ℝ ↑m ( 0 ... 𝑚 ) ) ∣ ( ( ( 𝑝 ‘ 0 ) = - π ∧ ( 𝑝 ‘ 𝑚 ) = π ) ∧ ∀ 𝑖 ∈ ( 0 ..^ 𝑚 ) ( 𝑝 ‘ 𝑖 ) < ( 𝑝 ‘ ( 𝑖 + 1 ) ) ) } ) | |
| 13 | fourierdlem75.g | ⊢ 𝐺 = ( ℝ D 𝐹 ) | |
| 14 | fourierdlem75.gcn | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝐺 ↾ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) : ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⟶ ℂ ) | |
| 15 | fourierdlem75.e | ⊢ ( 𝜑 → 𝐸 ∈ ( ( 𝐺 ↾ ( 𝑋 (,) +∞ ) ) limℂ 𝑋 ) ) | |
| 16 | fourierdlem75.a | ⊢ 𝐴 = if ( ( 𝑉 ‘ 𝑖 ) = 𝑋 , 𝐸 , ( ( 𝑅 − if ( ( 𝑉 ‘ 𝑖 ) < 𝑋 , 𝑊 , 𝑌 ) ) / ( 𝑄 ‘ 𝑖 ) ) ) | |
| 17 | 1 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → 𝑋 ∈ ℝ ) |
| 18 | 2 | fourierdlem2 | ⊢ ( 𝑀 ∈ ℕ → ( 𝑉 ∈ ( 𝑃 ‘ 𝑀 ) ↔ ( 𝑉 ∈ ( ℝ ↑m ( 0 ... 𝑀 ) ) ∧ ( ( ( 𝑉 ‘ 0 ) = ( - π + 𝑋 ) ∧ ( 𝑉 ‘ 𝑀 ) = ( π + 𝑋 ) ) ∧ ∀ 𝑖 ∈ ( 0 ..^ 𝑀 ) ( 𝑉 ‘ 𝑖 ) < ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) ) |
| 19 | 8 18 | syl | ⊢ ( 𝜑 → ( 𝑉 ∈ ( 𝑃 ‘ 𝑀 ) ↔ ( 𝑉 ∈ ( ℝ ↑m ( 0 ... 𝑀 ) ) ∧ ( ( ( 𝑉 ‘ 0 ) = ( - π + 𝑋 ) ∧ ( 𝑉 ‘ 𝑀 ) = ( π + 𝑋 ) ) ∧ ∀ 𝑖 ∈ ( 0 ..^ 𝑀 ) ( 𝑉 ‘ 𝑖 ) < ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) ) |
| 20 | 9 19 | mpbid | ⊢ ( 𝜑 → ( 𝑉 ∈ ( ℝ ↑m ( 0 ... 𝑀 ) ) ∧ ( ( ( 𝑉 ‘ 0 ) = ( - π + 𝑋 ) ∧ ( 𝑉 ‘ 𝑀 ) = ( π + 𝑋 ) ) ∧ ∀ 𝑖 ∈ ( 0 ..^ 𝑀 ) ( 𝑉 ‘ 𝑖 ) < ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) |
| 21 | 20 | simpld | ⊢ ( 𝜑 → 𝑉 ∈ ( ℝ ↑m ( 0 ... 𝑀 ) ) ) |
| 22 | elmapi | ⊢ ( 𝑉 ∈ ( ℝ ↑m ( 0 ... 𝑀 ) ) → 𝑉 : ( 0 ... 𝑀 ) ⟶ ℝ ) | |
| 23 | 21 22 | syl | ⊢ ( 𝜑 → 𝑉 : ( 0 ... 𝑀 ) ⟶ ℝ ) |
| 24 | 23 | adantr | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝑉 : ( 0 ... 𝑀 ) ⟶ ℝ ) |
| 25 | fzofzp1 | ⊢ ( 𝑖 ∈ ( 0 ..^ 𝑀 ) → ( 𝑖 + 1 ) ∈ ( 0 ... 𝑀 ) ) | |
| 26 | 25 | adantl | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑖 + 1 ) ∈ ( 0 ... 𝑀 ) ) |
| 27 | 24 26 | ffvelcdmd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑉 ‘ ( 𝑖 + 1 ) ) ∈ ℝ ) |
| 28 | 27 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝑉 ‘ ( 𝑖 + 1 ) ) ∈ ℝ ) |
| 29 | eqcom | ⊢ ( ( 𝑉 ‘ 𝑖 ) = 𝑋 ↔ 𝑋 = ( 𝑉 ‘ 𝑖 ) ) | |
| 30 | 29 | biimpi | ⊢ ( ( 𝑉 ‘ 𝑖 ) = 𝑋 → 𝑋 = ( 𝑉 ‘ 𝑖 ) ) |
| 31 | 30 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → 𝑋 = ( 𝑉 ‘ 𝑖 ) ) |
| 32 | 20 | simprrd | ⊢ ( 𝜑 → ∀ 𝑖 ∈ ( 0 ..^ 𝑀 ) ( 𝑉 ‘ 𝑖 ) < ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) |
| 33 | 32 | r19.21bi | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑉 ‘ 𝑖 ) < ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) |
| 34 | 33 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝑉 ‘ 𝑖 ) < ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) |
| 35 | 31 34 | eqbrtrd | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → 𝑋 < ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) |
| 36 | 3 | adantr | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝐹 : ℝ ⟶ ℝ ) |
| 37 | ioossre | ⊢ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⊆ ℝ | |
| 38 | 37 | a1i | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⊆ ℝ ) |
| 39 | 36 38 | fssresd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) : ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⟶ ℝ ) |
| 40 | 39 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) : ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⟶ ℝ ) |
| 41 | limcresi | ⊢ ( ( 𝐹 ↾ ( 𝑋 (,) +∞ ) ) limℂ 𝑋 ) ⊆ ( ( ( 𝐹 ↾ ( 𝑋 (,) +∞ ) ) ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) limℂ 𝑋 ) | |
| 42 | 41 5 | sselid | ⊢ ( 𝜑 → 𝑌 ∈ ( ( ( 𝐹 ↾ ( 𝑋 (,) +∞ ) ) ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) limℂ 𝑋 ) ) |
| 43 | 42 | adantr | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝑌 ∈ ( ( ( 𝐹 ↾ ( 𝑋 (,) +∞ ) ) ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) limℂ 𝑋 ) ) |
| 44 | pnfxr | ⊢ +∞ ∈ ℝ* | |
| 45 | 44 | a1i | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → +∞ ∈ ℝ* ) |
| 46 | 27 | rexrd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑉 ‘ ( 𝑖 + 1 ) ) ∈ ℝ* ) |
| 47 | 27 | ltpnfd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑉 ‘ ( 𝑖 + 1 ) ) < +∞ ) |
| 48 | 46 45 47 | xrltled | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑉 ‘ ( 𝑖 + 1 ) ) ≤ +∞ ) |
| 49 | iooss2 | ⊢ ( ( +∞ ∈ ℝ* ∧ ( 𝑉 ‘ ( 𝑖 + 1 ) ) ≤ +∞ ) → ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⊆ ( 𝑋 (,) +∞ ) ) | |
| 50 | 45 48 49 | syl2anc | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⊆ ( 𝑋 (,) +∞ ) ) |
| 51 | 50 | resabs1d | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( ( 𝐹 ↾ ( 𝑋 (,) +∞ ) ) ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) = ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) |
| 52 | 51 | oveq1d | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( ( ( 𝐹 ↾ ( 𝑋 (,) +∞ ) ) ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) limℂ 𝑋 ) = ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) limℂ 𝑋 ) ) |
| 53 | 43 52 | eleqtrd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝑌 ∈ ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) limℂ 𝑋 ) ) |
| 54 | 53 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → 𝑌 ∈ ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) limℂ 𝑋 ) ) |
| 55 | eqid | ⊢ ( ℝ D ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) = ( ℝ D ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) | |
| 56 | ax-resscn | ⊢ ℝ ⊆ ℂ | |
| 57 | 56 | a1i | ⊢ ( 𝜑 → ℝ ⊆ ℂ ) |
| 58 | 3 57 | fssd | ⊢ ( 𝜑 → 𝐹 : ℝ ⟶ ℂ ) |
| 59 | ssid | ⊢ ℝ ⊆ ℝ | |
| 60 | 59 | a1i | ⊢ ( 𝜑 → ℝ ⊆ ℝ ) |
| 61 | 37 | a1i | ⊢ ( 𝜑 → ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⊆ ℝ ) |
| 62 | eqid | ⊢ ( TopOpen ‘ ℂfld ) = ( TopOpen ‘ ℂfld ) | |
| 63 | tgioo4 | ⊢ ( topGen ‘ ran (,) ) = ( ( TopOpen ‘ ℂfld ) ↾t ℝ ) | |
| 64 | 62 63 | dvres | ⊢ ( ( ( ℝ ⊆ ℂ ∧ 𝐹 : ℝ ⟶ ℂ ) ∧ ( ℝ ⊆ ℝ ∧ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⊆ ℝ ) ) → ( ℝ D ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) = ( ( ℝ D 𝐹 ) ↾ ( ( int ‘ ( topGen ‘ ran (,) ) ) ‘ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) ) |
| 65 | 57 58 60 61 64 | syl22anc | ⊢ ( 𝜑 → ( ℝ D ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) = ( ( ℝ D 𝐹 ) ↾ ( ( int ‘ ( topGen ‘ ran (,) ) ) ‘ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) ) |
| 66 | 13 | eqcomi | ⊢ ( ℝ D 𝐹 ) = 𝐺 |
| 67 | ioontr | ⊢ ( ( int ‘ ( topGen ‘ ran (,) ) ) ‘ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) = ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) | |
| 68 | 66 67 | reseq12i | ⊢ ( ( ℝ D 𝐹 ) ↾ ( ( int ‘ ( topGen ‘ ran (,) ) ) ‘ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) = ( 𝐺 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) |
| 69 | 65 68 | eqtrdi | ⊢ ( 𝜑 → ( ℝ D ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) = ( 𝐺 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) |
| 70 | 69 | adantr | ⊢ ( ( 𝜑 ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( ℝ D ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) = ( 𝐺 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) |
| 71 | 70 | dmeqd | ⊢ ( ( 𝜑 ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → dom ( ℝ D ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) = dom ( 𝐺 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) |
| 72 | 71 | adantlr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → dom ( ℝ D ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) = dom ( 𝐺 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) |
| 73 | 14 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝐺 ↾ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) : ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⟶ ℂ ) |
| 74 | oveq1 | ⊢ ( ( 𝑉 ‘ 𝑖 ) = 𝑋 → ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) = ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) | |
| 75 | 74 | reseq2d | ⊢ ( ( 𝑉 ‘ 𝑖 ) = 𝑋 → ( 𝐺 ↾ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) = ( 𝐺 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) |
| 76 | 75 | feq1d | ⊢ ( ( 𝑉 ‘ 𝑖 ) = 𝑋 → ( ( 𝐺 ↾ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) : ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⟶ ℂ ↔ ( 𝐺 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) : ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⟶ ℂ ) ) |
| 77 | 76 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( ( 𝐺 ↾ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) : ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⟶ ℂ ↔ ( 𝐺 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) : ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⟶ ℂ ) ) |
| 78 | 73 77 | mpbid | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝐺 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) : ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⟶ ℂ ) |
| 79 | 74 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) = ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) |
| 80 | 79 | feq2d | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( ( 𝐺 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) : ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⟶ ℂ ↔ ( 𝐺 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) : ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⟶ ℂ ) ) |
| 81 | 78 80 | mpbid | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝐺 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) : ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⟶ ℂ ) |
| 82 | fdm | ⊢ ( ( 𝐺 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) : ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⟶ ℂ → dom ( 𝐺 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) = ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) | |
| 83 | 81 82 | syl | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → dom ( 𝐺 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) = ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) |
| 84 | 72 83 | eqtrd | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → dom ( ℝ D ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) = ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) |
| 85 | limcresi | ⊢ ( ( 𝐺 ↾ ( 𝑋 (,) +∞ ) ) limℂ 𝑋 ) ⊆ ( ( ( 𝐺 ↾ ( 𝑋 (,) +∞ ) ) ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) limℂ 𝑋 ) | |
| 86 | 85 15 | sselid | ⊢ ( 𝜑 → 𝐸 ∈ ( ( ( 𝐺 ↾ ( 𝑋 (,) +∞ ) ) ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) limℂ 𝑋 ) ) |
| 87 | 86 | adantr | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝐸 ∈ ( ( ( 𝐺 ↾ ( 𝑋 (,) +∞ ) ) ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) limℂ 𝑋 ) ) |
| 88 | 50 | resabs1d | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( ( 𝐺 ↾ ( 𝑋 (,) +∞ ) ) ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) = ( 𝐺 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) |
| 89 | 69 | adantr | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( ℝ D ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) = ( 𝐺 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) |
| 90 | 88 89 | eqtr4d | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( ( 𝐺 ↾ ( 𝑋 (,) +∞ ) ) ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) = ( ℝ D ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) ) |
| 91 | 90 | oveq1d | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( ( ( 𝐺 ↾ ( 𝑋 (,) +∞ ) ) ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) limℂ 𝑋 ) = ( ( ℝ D ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) limℂ 𝑋 ) ) |
| 92 | 87 91 | eleqtrd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝐸 ∈ ( ( ℝ D ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) limℂ 𝑋 ) ) |
| 93 | 92 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → 𝐸 ∈ ( ( ℝ D ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ) limℂ 𝑋 ) ) |
| 94 | eqid | ⊢ ( 𝑠 ∈ ( 0 (,) ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ) ↦ ( ( ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) / 𝑠 ) ) = ( 𝑠 ∈ ( 0 (,) ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ) ↦ ( ( ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) / 𝑠 ) ) | |
| 95 | oveq2 | ⊢ ( 𝑥 = 𝑠 → ( 𝑋 + 𝑥 ) = ( 𝑋 + 𝑠 ) ) | |
| 96 | 95 | fveq2d | ⊢ ( 𝑥 = 𝑠 → ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ‘ ( 𝑋 + 𝑥 ) ) = ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ‘ ( 𝑋 + 𝑠 ) ) ) |
| 97 | 96 | oveq1d | ⊢ ( 𝑥 = 𝑠 → ( ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ‘ ( 𝑋 + 𝑥 ) ) − 𝑌 ) = ( ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) ) |
| 98 | 97 | cbvmptv | ⊢ ( 𝑥 ∈ ( 0 (,) ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ) ↦ ( ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ‘ ( 𝑋 + 𝑥 ) ) − 𝑌 ) ) = ( 𝑠 ∈ ( 0 (,) ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ) ↦ ( ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) ) |
| 99 | id | ⊢ ( 𝑥 = 𝑠 → 𝑥 = 𝑠 ) | |
| 100 | 99 | cbvmptv | ⊢ ( 𝑥 ∈ ( 0 (,) ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ) ↦ 𝑥 ) = ( 𝑠 ∈ ( 0 (,) ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ) ↦ 𝑠 ) |
| 101 | 17 28 35 40 54 55 84 93 94 98 100 | fourierdlem61 | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → 𝐸 ∈ ( ( 𝑠 ∈ ( 0 (,) ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ) ↦ ( ( ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) / 𝑠 ) ) limℂ 0 ) ) |
| 102 | iftrue | ⊢ ( ( 𝑉 ‘ 𝑖 ) = 𝑋 → if ( ( 𝑉 ‘ 𝑖 ) = 𝑋 , 𝐸 , ( ( 𝑅 − if ( ( 𝑉 ‘ 𝑖 ) < 𝑋 , 𝑊 , 𝑌 ) ) / ( 𝑄 ‘ 𝑖 ) ) ) = 𝐸 ) | |
| 103 | 16 102 | eqtrid | ⊢ ( ( 𝑉 ‘ 𝑖 ) = 𝑋 → 𝐴 = 𝐸 ) |
| 104 | 103 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → 𝐴 = 𝐸 ) |
| 105 | 7 | reseq1i | ⊢ ( 𝐻 ↾ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) = ( ( 𝑠 ∈ ( - π [,] π ) ↦ if ( 𝑠 = 0 , 0 , ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) ) ↾ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) |
| 106 | 105 | a1i | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝐻 ↾ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) = ( ( 𝑠 ∈ ( - π [,] π ) ↦ if ( 𝑠 = 0 , 0 , ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) ) ↾ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) ) |
| 107 | ioossicc | ⊢ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑖 ) [,] ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) | |
| 108 | pire | ⊢ π ∈ ℝ | |
| 109 | 108 | renegcli | ⊢ - π ∈ ℝ |
| 110 | 109 | rexri | ⊢ - π ∈ ℝ* |
| 111 | 110 | a1i | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → - π ∈ ℝ* ) |
| 112 | 108 | rexri | ⊢ π ∈ ℝ* |
| 113 | 112 | a1i | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → π ∈ ℝ* ) |
| 114 | 109 | a1i | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → - π ∈ ℝ ) |
| 115 | 108 | a1i | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → π ∈ ℝ ) |
| 116 | 109 | a1i | ⊢ ( 𝜑 → - π ∈ ℝ ) |
| 117 | 116 1 | readdcld | ⊢ ( 𝜑 → ( - π + 𝑋 ) ∈ ℝ ) |
| 118 | 108 | a1i | ⊢ ( 𝜑 → π ∈ ℝ ) |
| 119 | 118 1 | readdcld | ⊢ ( 𝜑 → ( π + 𝑋 ) ∈ ℝ ) |
| 120 | 117 119 | iccssred | ⊢ ( 𝜑 → ( ( - π + 𝑋 ) [,] ( π + 𝑋 ) ) ⊆ ℝ ) |
| 121 | 120 | adantr | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → ( ( - π + 𝑋 ) [,] ( π + 𝑋 ) ) ⊆ ℝ ) |
| 122 | 2 8 9 | fourierdlem15 | ⊢ ( 𝜑 → 𝑉 : ( 0 ... 𝑀 ) ⟶ ( ( - π + 𝑋 ) [,] ( π + 𝑋 ) ) ) |
| 123 | 122 | ffvelcdmda | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → ( 𝑉 ‘ 𝑖 ) ∈ ( ( - π + 𝑋 ) [,] ( π + 𝑋 ) ) ) |
| 124 | 121 123 | sseldd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → ( 𝑉 ‘ 𝑖 ) ∈ ℝ ) |
| 125 | 1 | adantr | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → 𝑋 ∈ ℝ ) |
| 126 | 124 125 | resubcld | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ∈ ℝ ) |
| 127 | 116 | recnd | ⊢ ( 𝜑 → - π ∈ ℂ ) |
| 128 | 1 | recnd | ⊢ ( 𝜑 → 𝑋 ∈ ℂ ) |
| 129 | 127 128 | pncand | ⊢ ( 𝜑 → ( ( - π + 𝑋 ) − 𝑋 ) = - π ) |
| 130 | 129 | eqcomd | ⊢ ( 𝜑 → - π = ( ( - π + 𝑋 ) − 𝑋 ) ) |
| 131 | 130 | adantr | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → - π = ( ( - π + 𝑋 ) − 𝑋 ) ) |
| 132 | 117 | adantr | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → ( - π + 𝑋 ) ∈ ℝ ) |
| 133 | 119 | adantr | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → ( π + 𝑋 ) ∈ ℝ ) |
| 134 | elicc2 | ⊢ ( ( ( - π + 𝑋 ) ∈ ℝ ∧ ( π + 𝑋 ) ∈ ℝ ) → ( ( 𝑉 ‘ 𝑖 ) ∈ ( ( - π + 𝑋 ) [,] ( π + 𝑋 ) ) ↔ ( ( 𝑉 ‘ 𝑖 ) ∈ ℝ ∧ ( - π + 𝑋 ) ≤ ( 𝑉 ‘ 𝑖 ) ∧ ( 𝑉 ‘ 𝑖 ) ≤ ( π + 𝑋 ) ) ) ) | |
| 135 | 132 133 134 | syl2anc | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → ( ( 𝑉 ‘ 𝑖 ) ∈ ( ( - π + 𝑋 ) [,] ( π + 𝑋 ) ) ↔ ( ( 𝑉 ‘ 𝑖 ) ∈ ℝ ∧ ( - π + 𝑋 ) ≤ ( 𝑉 ‘ 𝑖 ) ∧ ( 𝑉 ‘ 𝑖 ) ≤ ( π + 𝑋 ) ) ) ) |
| 136 | 123 135 | mpbid | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → ( ( 𝑉 ‘ 𝑖 ) ∈ ℝ ∧ ( - π + 𝑋 ) ≤ ( 𝑉 ‘ 𝑖 ) ∧ ( 𝑉 ‘ 𝑖 ) ≤ ( π + 𝑋 ) ) ) |
| 137 | 136 | simp2d | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → ( - π + 𝑋 ) ≤ ( 𝑉 ‘ 𝑖 ) ) |
| 138 | 132 124 125 137 | lesub1dd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → ( ( - π + 𝑋 ) − 𝑋 ) ≤ ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ) |
| 139 | 131 138 | eqbrtrd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → - π ≤ ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ) |
| 140 | 136 | simp3d | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → ( 𝑉 ‘ 𝑖 ) ≤ ( π + 𝑋 ) ) |
| 141 | 124 133 125 140 | lesub1dd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ≤ ( ( π + 𝑋 ) − 𝑋 ) ) |
| 142 | 115 | recnd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → π ∈ ℂ ) |
| 143 | 128 | adantr | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → 𝑋 ∈ ℂ ) |
| 144 | 142 143 | pncand | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → ( ( π + 𝑋 ) − 𝑋 ) = π ) |
| 145 | 141 144 | breqtrd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ≤ π ) |
| 146 | 114 115 126 139 145 | eliccd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ∈ ( - π [,] π ) ) |
| 147 | 146 11 | fmptd | ⊢ ( 𝜑 → 𝑄 : ( 0 ... 𝑀 ) ⟶ ( - π [,] π ) ) |
| 148 | 147 | adantr | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝑄 : ( 0 ... 𝑀 ) ⟶ ( - π [,] π ) ) |
| 149 | simpr | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝑖 ∈ ( 0 ..^ 𝑀 ) ) | |
| 150 | 111 113 148 149 | fourierdlem8 | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( ( 𝑄 ‘ 𝑖 ) [,] ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ⊆ ( - π [,] π ) ) |
| 151 | 107 150 | sstrid | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ⊆ ( - π [,] π ) ) |
| 152 | 151 | resmptd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( ( 𝑠 ∈ ( - π [,] π ) ↦ if ( 𝑠 = 0 , 0 , ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) ) ↾ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) = ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ if ( 𝑠 = 0 , 0 , ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) ) ) |
| 153 | 152 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( ( 𝑠 ∈ ( - π [,] π ) ↦ if ( 𝑠 = 0 , 0 , ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) ) ↾ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) = ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ if ( 𝑠 = 0 , 0 , ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) ) ) |
| 154 | elfzofz | ⊢ ( 𝑖 ∈ ( 0 ..^ 𝑀 ) → 𝑖 ∈ ( 0 ... 𝑀 ) ) | |
| 155 | simpr | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → 𝑖 ∈ ( 0 ... 𝑀 ) ) | |
| 156 | 11 | fvmpt2 | ⊢ ( ( 𝑖 ∈ ( 0 ... 𝑀 ) ∧ ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ∈ ( - π [,] π ) ) → ( 𝑄 ‘ 𝑖 ) = ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ) |
| 157 | 155 146 156 | syl2anc | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → ( 𝑄 ‘ 𝑖 ) = ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ) |
| 158 | 157 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝑄 ‘ 𝑖 ) = ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ) |
| 159 | oveq1 | ⊢ ( ( 𝑉 ‘ 𝑖 ) = 𝑋 → ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) = ( 𝑋 − 𝑋 ) ) | |
| 160 | 159 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) = ( 𝑋 − 𝑋 ) ) |
| 161 | 128 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → 𝑋 ∈ ℂ ) |
| 162 | 161 | subidd | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝑋 − 𝑋 ) = 0 ) |
| 163 | 158 160 162 | 3eqtrd | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝑄 ‘ 𝑖 ) = 0 ) |
| 164 | 154 163 | sylanl2 | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝑄 ‘ 𝑖 ) = 0 ) |
| 165 | fveq2 | ⊢ ( 𝑖 = 𝑗 → ( 𝑉 ‘ 𝑖 ) = ( 𝑉 ‘ 𝑗 ) ) | |
| 166 | 165 | oveq1d | ⊢ ( 𝑖 = 𝑗 → ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) = ( ( 𝑉 ‘ 𝑗 ) − 𝑋 ) ) |
| 167 | 166 | cbvmptv | ⊢ ( 𝑖 ∈ ( 0 ... 𝑀 ) ↦ ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ) = ( 𝑗 ∈ ( 0 ... 𝑀 ) ↦ ( ( 𝑉 ‘ 𝑗 ) − 𝑋 ) ) |
| 168 | 11 167 | eqtri | ⊢ 𝑄 = ( 𝑗 ∈ ( 0 ... 𝑀 ) ↦ ( ( 𝑉 ‘ 𝑗 ) − 𝑋 ) ) |
| 169 | 168 | a1i | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝑄 = ( 𝑗 ∈ ( 0 ... 𝑀 ) ↦ ( ( 𝑉 ‘ 𝑗 ) − 𝑋 ) ) ) |
| 170 | fveq2 | ⊢ ( 𝑗 = ( 𝑖 + 1 ) → ( 𝑉 ‘ 𝑗 ) = ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) | |
| 171 | 170 | oveq1d | ⊢ ( 𝑗 = ( 𝑖 + 1 ) → ( ( 𝑉 ‘ 𝑗 ) − 𝑋 ) = ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ) |
| 172 | 171 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑗 = ( 𝑖 + 1 ) ) → ( ( 𝑉 ‘ 𝑗 ) − 𝑋 ) = ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ) |
| 173 | 1 | adantr | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝑋 ∈ ℝ ) |
| 174 | 27 173 | resubcld | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ∈ ℝ ) |
| 175 | 169 172 26 174 | fvmptd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑄 ‘ ( 𝑖 + 1 ) ) = ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ) |
| 176 | 175 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝑄 ‘ ( 𝑖 + 1 ) ) = ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ) |
| 177 | 164 176 | oveq12d | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) = ( 0 (,) ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ) ) |
| 178 | simplr | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) ∧ 𝑠 = 0 ) → 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) | |
| 179 | 8 | adantr | ⊢ ( ( 𝜑 ∧ 𝑠 = 0 ) → 𝑀 ∈ ℕ ) |
| 180 | 116 118 1 2 12 8 9 11 | fourierdlem14 | ⊢ ( 𝜑 → 𝑄 ∈ ( 𝑂 ‘ 𝑀 ) ) |
| 181 | 180 | adantr | ⊢ ( ( 𝜑 ∧ 𝑠 = 0 ) → 𝑄 ∈ ( 𝑂 ‘ 𝑀 ) ) |
| 182 | simpr | ⊢ ( ( 𝜑 ∧ 𝑠 = 0 ) → 𝑠 = 0 ) | |
| 183 | ffn | ⊢ ( 𝑉 : ( 0 ... 𝑀 ) ⟶ ( ( - π + 𝑋 ) [,] ( π + 𝑋 ) ) → 𝑉 Fn ( 0 ... 𝑀 ) ) | |
| 184 | fvelrnb | ⊢ ( 𝑉 Fn ( 0 ... 𝑀 ) → ( 𝑋 ∈ ran 𝑉 ↔ ∃ 𝑖 ∈ ( 0 ... 𝑀 ) ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ) | |
| 185 | 122 183 184 | 3syl | ⊢ ( 𝜑 → ( 𝑋 ∈ ran 𝑉 ↔ ∃ 𝑖 ∈ ( 0 ... 𝑀 ) ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ) |
| 186 | 4 185 | mpbid | ⊢ ( 𝜑 → ∃ 𝑖 ∈ ( 0 ... 𝑀 ) ( 𝑉 ‘ 𝑖 ) = 𝑋 ) |
| 187 | 163 | ex | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → ( ( 𝑉 ‘ 𝑖 ) = 𝑋 → ( 𝑄 ‘ 𝑖 ) = 0 ) ) |
| 188 | 187 | reximdva | ⊢ ( 𝜑 → ( ∃ 𝑖 ∈ ( 0 ... 𝑀 ) ( 𝑉 ‘ 𝑖 ) = 𝑋 → ∃ 𝑖 ∈ ( 0 ... 𝑀 ) ( 𝑄 ‘ 𝑖 ) = 0 ) ) |
| 189 | 186 188 | mpd | ⊢ ( 𝜑 → ∃ 𝑖 ∈ ( 0 ... 𝑀 ) ( 𝑄 ‘ 𝑖 ) = 0 ) |
| 190 | 126 11 | fmptd | ⊢ ( 𝜑 → 𝑄 : ( 0 ... 𝑀 ) ⟶ ℝ ) |
| 191 | ffn | ⊢ ( 𝑄 : ( 0 ... 𝑀 ) ⟶ ℝ → 𝑄 Fn ( 0 ... 𝑀 ) ) | |
| 192 | fvelrnb | ⊢ ( 𝑄 Fn ( 0 ... 𝑀 ) → ( 0 ∈ ran 𝑄 ↔ ∃ 𝑖 ∈ ( 0 ... 𝑀 ) ( 𝑄 ‘ 𝑖 ) = 0 ) ) | |
| 193 | 190 191 192 | 3syl | ⊢ ( 𝜑 → ( 0 ∈ ran 𝑄 ↔ ∃ 𝑖 ∈ ( 0 ... 𝑀 ) ( 𝑄 ‘ 𝑖 ) = 0 ) ) |
| 194 | 189 193 | mpbird | ⊢ ( 𝜑 → 0 ∈ ran 𝑄 ) |
| 195 | 194 | adantr | ⊢ ( ( 𝜑 ∧ 𝑠 = 0 ) → 0 ∈ ran 𝑄 ) |
| 196 | 182 195 | eqeltrd | ⊢ ( ( 𝜑 ∧ 𝑠 = 0 ) → 𝑠 ∈ ran 𝑄 ) |
| 197 | 12 179 181 196 | fourierdlem12 | ⊢ ( ( ( 𝜑 ∧ 𝑠 = 0 ) ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ¬ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) |
| 198 | 197 | an32s | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 = 0 ) → ¬ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) |
| 199 | 198 | adantlr | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) ∧ 𝑠 = 0 ) → ¬ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) |
| 200 | 178 199 | pm2.65da | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ¬ 𝑠 = 0 ) |
| 201 | 200 | adantlr | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ¬ 𝑠 = 0 ) |
| 202 | 201 | iffalsed | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → if ( 𝑠 = 0 , 0 , ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) = ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) |
| 203 | 164 | eqcomd | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → 0 = ( 𝑄 ‘ 𝑖 ) ) |
| 204 | 203 | adantr | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 0 = ( 𝑄 ‘ 𝑖 ) ) |
| 205 | elioo3g | ⊢ ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↔ ( ( ( 𝑄 ‘ 𝑖 ) ∈ ℝ* ∧ ( 𝑄 ‘ ( 𝑖 + 1 ) ) ∈ ℝ* ∧ 𝑠 ∈ ℝ* ) ∧ ( ( 𝑄 ‘ 𝑖 ) < 𝑠 ∧ 𝑠 < ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) ) | |
| 206 | 205 | biimpi | ⊢ ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) → ( ( ( 𝑄 ‘ 𝑖 ) ∈ ℝ* ∧ ( 𝑄 ‘ ( 𝑖 + 1 ) ) ∈ ℝ* ∧ 𝑠 ∈ ℝ* ) ∧ ( ( 𝑄 ‘ 𝑖 ) < 𝑠 ∧ 𝑠 < ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) ) |
| 207 | 206 | simprld | ⊢ ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) → ( 𝑄 ‘ 𝑖 ) < 𝑠 ) |
| 208 | 207 | adantl | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑄 ‘ 𝑖 ) < 𝑠 ) |
| 209 | 204 208 | eqbrtrd | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 0 < 𝑠 ) |
| 210 | 209 | iftrued | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → if ( 0 < 𝑠 , 𝑌 , 𝑊 ) = 𝑌 ) |
| 211 | 210 | oveq2d | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) = ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) ) |
| 212 | 211 | oveq1d | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) = ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) / 𝑠 ) ) |
| 213 | 1 | rexrd | ⊢ ( 𝜑 → 𝑋 ∈ ℝ* ) |
| 214 | 213 | ad3antrrr | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑋 ∈ ℝ* ) |
| 215 | 46 | ad2antrr | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑉 ‘ ( 𝑖 + 1 ) ) ∈ ℝ* ) |
| 216 | 173 | ad2antrr | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑋 ∈ ℝ ) |
| 217 | elioore | ⊢ ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) → 𝑠 ∈ ℝ ) | |
| 218 | 217 | adantl | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑠 ∈ ℝ ) |
| 219 | 216 218 | readdcld | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑋 + 𝑠 ) ∈ ℝ ) |
| 220 | 218 209 | elrpd | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑠 ∈ ℝ+ ) |
| 221 | 216 220 | ltaddrpd | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑋 < ( 𝑋 + 𝑠 ) ) |
| 222 | 217 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑠 ∈ ℝ ) |
| 223 | 190 | adantr | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝑄 : ( 0 ... 𝑀 ) ⟶ ℝ ) |
| 224 | 223 26 | ffvelcdmd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑄 ‘ ( 𝑖 + 1 ) ) ∈ ℝ ) |
| 225 | 224 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑄 ‘ ( 𝑖 + 1 ) ) ∈ ℝ ) |
| 226 | 1 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑋 ∈ ℝ ) |
| 227 | 206 | simprrd | ⊢ ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) → 𝑠 < ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) |
| 228 | 227 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑠 < ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) |
| 229 | 222 225 226 228 | ltadd2dd | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑋 + 𝑠 ) < ( 𝑋 + ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) |
| 230 | 175 | oveq2d | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑋 + ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) = ( 𝑋 + ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ) ) |
| 231 | 128 | adantr | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝑋 ∈ ℂ ) |
| 232 | 27 | recnd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑉 ‘ ( 𝑖 + 1 ) ) ∈ ℂ ) |
| 233 | 231 232 | pncan3d | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑋 + ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ) = ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) |
| 234 | 230 233 | eqtrd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑋 + ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) = ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) |
| 235 | 234 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑋 + ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) = ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) |
| 236 | 229 235 | breqtrd | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑋 + 𝑠 ) < ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) |
| 237 | 236 | adantlr | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑋 + 𝑠 ) < ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) |
| 238 | 214 215 219 221 237 | eliood | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑋 + 𝑠 ) ∈ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) |
| 239 | fvres | ⊢ ( ( 𝑋 + 𝑠 ) ∈ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) → ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ‘ ( 𝑋 + 𝑠 ) ) = ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) ) | |
| 240 | 238 239 | syl | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ‘ ( 𝑋 + 𝑠 ) ) = ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) ) |
| 241 | 240 | eqcomd | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) = ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ‘ ( 𝑋 + 𝑠 ) ) ) |
| 242 | 241 | oveq1d | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) = ( ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) ) |
| 243 | 242 | oveq1d | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) / 𝑠 ) = ( ( ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) / 𝑠 ) ) |
| 244 | 202 212 243 | 3eqtrd | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → if ( 𝑠 = 0 , 0 , ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) = ( ( ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) / 𝑠 ) ) |
| 245 | 177 244 | mpteq12dva | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ if ( 𝑠 = 0 , 0 , ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) ) = ( 𝑠 ∈ ( 0 (,) ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ) ↦ ( ( ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) / 𝑠 ) ) ) |
| 246 | 106 153 245 | 3eqtrd | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝐻 ↾ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) = ( 𝑠 ∈ ( 0 (,) ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ) ↦ ( ( ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) / 𝑠 ) ) ) |
| 247 | 246 164 | oveq12d | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( ( 𝐻 ↾ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) = ( ( 𝑠 ∈ ( 0 (,) ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ) ↦ ( ( ( ( 𝐹 ↾ ( 𝑋 (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) / 𝑠 ) ) limℂ 0 ) ) |
| 248 | 101 104 247 | 3eltr4d | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → 𝐴 ∈ ( ( 𝐻 ↾ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 249 | eqid | ⊢ ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) ) = ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) ) | |
| 250 | eqid | ⊢ ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ 𝑠 ) = ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ 𝑠 ) | |
| 251 | eqid | ⊢ ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) = ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) | |
| 252 | 3 | adantr | ⊢ ( ( 𝜑 ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝐹 : ℝ ⟶ ℝ ) |
| 253 | 1 | adantr | ⊢ ( ( 𝜑 ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑋 ∈ ℝ ) |
| 254 | 217 | adantl | ⊢ ( ( 𝜑 ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑠 ∈ ℝ ) |
| 255 | 253 254 | readdcld | ⊢ ( ( 𝜑 ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑋 + 𝑠 ) ∈ ℝ ) |
| 256 | 252 255 | ffvelcdmd | ⊢ ( ( 𝜑 ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) ∈ ℝ ) |
| 257 | 256 | recnd | ⊢ ( ( 𝜑 ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) ∈ ℂ ) |
| 258 | 257 | adantlr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) ∈ ℂ ) |
| 259 | 258 | 3adantl3 | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) ∈ ℂ ) |
| 260 | limccl | ⊢ ( ( 𝐹 ↾ ( 𝑋 (,) +∞ ) ) limℂ 𝑋 ) ⊆ ℂ | |
| 261 | 260 5 | sselid | ⊢ ( 𝜑 → 𝑌 ∈ ℂ ) |
| 262 | 6 | recnd | ⊢ ( 𝜑 → 𝑊 ∈ ℂ ) |
| 263 | 261 262 | ifcld | ⊢ ( 𝜑 → if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ∈ ℂ ) |
| 264 | 263 | adantr | ⊢ ( ( 𝜑 ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ∈ ℂ ) |
| 265 | 264 | 3ad2antl1 | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ∈ ℂ ) |
| 266 | 259 265 | subcld | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) ∈ ℂ ) |
| 267 | 217 | recnd | ⊢ ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) → 𝑠 ∈ ℂ ) |
| 268 | 267 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑠 ∈ ℂ ) |
| 269 | velsn | ⊢ ( 𝑠 ∈ { 0 } ↔ 𝑠 = 0 ) | |
| 270 | 200 269 | sylnibr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ¬ 𝑠 ∈ { 0 } ) |
| 271 | 270 | 3adantl3 | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ¬ 𝑠 ∈ { 0 } ) |
| 272 | 268 271 | eldifd | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑠 ∈ ( ℂ ∖ { 0 } ) ) |
| 273 | eqid | ⊢ ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) ) = ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) ) | |
| 274 | eqid | ⊢ ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ 𝑊 ) = ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ 𝑊 ) | |
| 275 | eqid | ⊢ ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − 𝑊 ) ) = ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − 𝑊 ) ) | |
| 276 | 262 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑊 ∈ ℂ ) |
| 277 | ioossre | ⊢ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ⊆ ℝ | |
| 278 | 277 | a1i | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ⊆ ℝ ) |
| 279 | 154 124 | sylan2 | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑉 ‘ 𝑖 ) ∈ ℝ ) |
| 280 | 279 | rexrd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑉 ‘ 𝑖 ) ∈ ℝ* ) |
| 281 | 280 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑉 ‘ 𝑖 ) ∈ ℝ* ) |
| 282 | 46 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑉 ‘ ( 𝑖 + 1 ) ) ∈ ℝ* ) |
| 283 | 255 | adantlr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑋 + 𝑠 ) ∈ ℝ ) |
| 284 | iccssre | ⊢ ( ( - π ∈ ℝ ∧ π ∈ ℝ ) → ( - π [,] π ) ⊆ ℝ ) | |
| 285 | 109 108 284 | mp2an | ⊢ ( - π [,] π ) ⊆ ℝ |
| 286 | 285 56 | sstri | ⊢ ( - π [,] π ) ⊆ ℂ |
| 287 | 157 146 | eqeltrd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ... 𝑀 ) ) → ( 𝑄 ‘ 𝑖 ) ∈ ( - π [,] π ) ) |
| 288 | 154 287 | sylan2 | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑄 ‘ 𝑖 ) ∈ ( - π [,] π ) ) |
| 289 | 286 288 | sselid | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑄 ‘ 𝑖 ) ∈ ℂ ) |
| 290 | 231 289 | addcomd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑋 + ( 𝑄 ‘ 𝑖 ) ) = ( ( 𝑄 ‘ 𝑖 ) + 𝑋 ) ) |
| 291 | 154 | adantl | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝑖 ∈ ( 0 ... 𝑀 ) ) |
| 292 | 154 126 | sylan2 | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ∈ ℝ ) |
| 293 | 11 | fvmpt2 | ⊢ ( ( 𝑖 ∈ ( 0 ... 𝑀 ) ∧ ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ∈ ℝ ) → ( 𝑄 ‘ 𝑖 ) = ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ) |
| 294 | 291 292 293 | syl2anc | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑄 ‘ 𝑖 ) = ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ) |
| 295 | 294 | oveq1d | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( ( 𝑄 ‘ 𝑖 ) + 𝑋 ) = ( ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) + 𝑋 ) ) |
| 296 | 279 | recnd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑉 ‘ 𝑖 ) ∈ ℂ ) |
| 297 | 296 231 | npcand | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) + 𝑋 ) = ( 𝑉 ‘ 𝑖 ) ) |
| 298 | 290 295 297 | 3eqtrrd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑉 ‘ 𝑖 ) = ( 𝑋 + ( 𝑄 ‘ 𝑖 ) ) ) |
| 299 | 298 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑉 ‘ 𝑖 ) = ( 𝑋 + ( 𝑄 ‘ 𝑖 ) ) ) |
| 300 | 294 292 | eqeltrd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑄 ‘ 𝑖 ) ∈ ℝ ) |
| 301 | 300 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑄 ‘ 𝑖 ) ∈ ℝ ) |
| 302 | 207 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑄 ‘ 𝑖 ) < 𝑠 ) |
| 303 | 301 222 226 302 | ltadd2dd | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑋 + ( 𝑄 ‘ 𝑖 ) ) < ( 𝑋 + 𝑠 ) ) |
| 304 | 299 303 | eqbrtrd | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑉 ‘ 𝑖 ) < ( 𝑋 + 𝑠 ) ) |
| 305 | 281 282 283 304 236 | eliood | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑋 + 𝑠 ) ∈ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) |
| 306 | ioossre | ⊢ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⊆ ℝ | |
| 307 | 306 | a1i | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ⊆ ℝ ) |
| 308 | 301 302 | gtned | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑠 ≠ ( 𝑄 ‘ 𝑖 ) ) |
| 309 | 298 | oveq2d | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( ( 𝐹 ↾ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) limℂ ( 𝑉 ‘ 𝑖 ) ) = ( ( 𝐹 ↾ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) limℂ ( 𝑋 + ( 𝑄 ‘ 𝑖 ) ) ) ) |
| 310 | 10 309 | eleqtrd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝑅 ∈ ( ( 𝐹 ↾ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) limℂ ( 𝑋 + ( 𝑄 ‘ 𝑖 ) ) ) ) |
| 311 | 36 173 278 273 305 307 308 310 289 | fourierdlem53 | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝑅 ∈ ( ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 312 | ioosscn | ⊢ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ⊆ ℂ | |
| 313 | 312 | a1i | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ⊆ ℂ ) |
| 314 | 262 | adantr | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝑊 ∈ ℂ ) |
| 315 | 274 313 314 289 | constlimc | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝑊 ∈ ( ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ 𝑊 ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 316 | 273 274 275 258 276 311 315 | sublimc | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑅 − 𝑊 ) ∈ ( ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − 𝑊 ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 317 | 316 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( 𝑅 − 𝑊 ) ∈ ( ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − 𝑊 ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 318 | iftrue | ⊢ ( ( 𝑉 ‘ 𝑖 ) < 𝑋 → if ( ( 𝑉 ‘ 𝑖 ) < 𝑋 , 𝑊 , 𝑌 ) = 𝑊 ) | |
| 319 | 318 | oveq2d | ⊢ ( ( 𝑉 ‘ 𝑖 ) < 𝑋 → ( 𝑅 − if ( ( 𝑉 ‘ 𝑖 ) < 𝑋 , 𝑊 , 𝑌 ) ) = ( 𝑅 − 𝑊 ) ) |
| 320 | 319 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( 𝑅 − if ( ( 𝑉 ‘ 𝑖 ) < 𝑋 , 𝑊 , 𝑌 ) ) = ( 𝑅 − 𝑊 ) ) |
| 321 | 217 | adantl | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑠 ∈ ℝ ) |
| 322 | 0red | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 0 ∈ ℝ ) | |
| 323 | 224 | ad2antrr | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑄 ‘ ( 𝑖 + 1 ) ) ∈ ℝ ) |
| 324 | 227 | adantl | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑠 < ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) |
| 325 | 175 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( 𝑄 ‘ ( 𝑖 + 1 ) ) = ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ) |
| 326 | 280 | ad2antrr | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ ¬ ( 𝑉 ‘ ( 𝑖 + 1 ) ) ≤ 𝑋 ) → ( 𝑉 ‘ 𝑖 ) ∈ ℝ* ) |
| 327 | 46 | ad2antrr | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ ¬ ( 𝑉 ‘ ( 𝑖 + 1 ) ) ≤ 𝑋 ) → ( 𝑉 ‘ ( 𝑖 + 1 ) ) ∈ ℝ* ) |
| 328 | 173 | ad2antrr | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ ¬ ( 𝑉 ‘ ( 𝑖 + 1 ) ) ≤ 𝑋 ) → 𝑋 ∈ ℝ ) |
| 329 | simplr | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ ¬ ( 𝑉 ‘ ( 𝑖 + 1 ) ) ≤ 𝑋 ) → ( 𝑉 ‘ 𝑖 ) < 𝑋 ) | |
| 330 | simpr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ ( 𝑖 + 1 ) ) ≤ 𝑋 ) → ¬ ( 𝑉 ‘ ( 𝑖 + 1 ) ) ≤ 𝑋 ) | |
| 331 | 1 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ ( 𝑖 + 1 ) ) ≤ 𝑋 ) → 𝑋 ∈ ℝ ) |
| 332 | 27 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ ( 𝑖 + 1 ) ) ≤ 𝑋 ) → ( 𝑉 ‘ ( 𝑖 + 1 ) ) ∈ ℝ ) |
| 333 | 331 332 | ltnled | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ ( 𝑖 + 1 ) ) ≤ 𝑋 ) → ( 𝑋 < ( 𝑉 ‘ ( 𝑖 + 1 ) ) ↔ ¬ ( 𝑉 ‘ ( 𝑖 + 1 ) ) ≤ 𝑋 ) ) |
| 334 | 330 333 | mpbird | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ ( 𝑖 + 1 ) ) ≤ 𝑋 ) → 𝑋 < ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) |
| 335 | 334 | adantlr | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ ¬ ( 𝑉 ‘ ( 𝑖 + 1 ) ) ≤ 𝑋 ) → 𝑋 < ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) |
| 336 | 326 327 328 329 335 | eliood | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ ¬ ( 𝑉 ‘ ( 𝑖 + 1 ) ) ≤ 𝑋 ) → 𝑋 ∈ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) |
| 337 | 2 8 9 4 | fourierdlem12 | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ¬ 𝑋 ∈ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) |
| 338 | 337 | ad2antrr | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ ¬ ( 𝑉 ‘ ( 𝑖 + 1 ) ) ≤ 𝑋 ) → ¬ 𝑋 ∈ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) |
| 339 | 336 338 | condan | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( 𝑉 ‘ ( 𝑖 + 1 ) ) ≤ 𝑋 ) |
| 340 | 27 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( 𝑉 ‘ ( 𝑖 + 1 ) ) ∈ ℝ ) |
| 341 | 1 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → 𝑋 ∈ ℝ ) |
| 342 | 340 341 | suble0d | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ≤ 0 ↔ ( 𝑉 ‘ ( 𝑖 + 1 ) ) ≤ 𝑋 ) ) |
| 343 | 339 342 | mpbird | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( ( 𝑉 ‘ ( 𝑖 + 1 ) ) − 𝑋 ) ≤ 0 ) |
| 344 | 325 343 | eqbrtrd | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( 𝑄 ‘ ( 𝑖 + 1 ) ) ≤ 0 ) |
| 345 | 344 | adantr | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑄 ‘ ( 𝑖 + 1 ) ) ≤ 0 ) |
| 346 | 321 323 322 324 345 | ltletrd | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑠 < 0 ) |
| 347 | 321 322 346 | ltnsymd | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ¬ 0 < 𝑠 ) |
| 348 | 347 | iffalsed | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → if ( 0 < 𝑠 , 𝑌 , 𝑊 ) = 𝑊 ) |
| 349 | 348 | oveq2d | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) = ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − 𝑊 ) ) |
| 350 | 349 | mpteq2dva | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) ) = ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − 𝑊 ) ) ) |
| 351 | 350 | oveq1d | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) = ( ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − 𝑊 ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 352 | 317 320 351 | 3eltr4d | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( 𝑅 − if ( ( 𝑉 ‘ 𝑖 ) < 𝑋 , 𝑊 , 𝑌 ) ) ∈ ( ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 353 | 352 | 3adantl3 | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( 𝑅 − if ( ( 𝑉 ‘ 𝑖 ) < 𝑋 , 𝑊 , 𝑌 ) ) ∈ ( ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 354 | eqid | ⊢ ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ 𝑌 ) = ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ 𝑌 ) | |
| 355 | eqid | ⊢ ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) ) = ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) ) | |
| 356 | 261 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑌 ∈ ℂ ) |
| 357 | 261 | adantr | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝑌 ∈ ℂ ) |
| 358 | 354 313 357 289 | constlimc | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝑌 ∈ ( ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ 𝑌 ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 359 | 273 354 355 258 356 311 358 | sublimc | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑅 − 𝑌 ) ∈ ( ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 360 | 359 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( 𝑅 − 𝑌 ) ∈ ( ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 361 | iffalse | ⊢ ( ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 → if ( ( 𝑉 ‘ 𝑖 ) < 𝑋 , 𝑊 , 𝑌 ) = 𝑌 ) | |
| 362 | 361 | oveq2d | ⊢ ( ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 → ( 𝑅 − if ( ( 𝑉 ‘ 𝑖 ) < 𝑋 , 𝑊 , 𝑌 ) ) = ( 𝑅 − 𝑌 ) ) |
| 363 | 362 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( 𝑅 − if ( ( 𝑉 ‘ 𝑖 ) < 𝑋 , 𝑊 , 𝑌 ) ) = ( 𝑅 − 𝑌 ) ) |
| 364 | 0red | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 0 ∈ ℝ ) | |
| 365 | 300 | ad2antrr | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑄 ‘ 𝑖 ) ∈ ℝ ) |
| 366 | 217 | adantl | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑠 ∈ ℝ ) |
| 367 | 1 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → 𝑋 ∈ ℝ ) |
| 368 | 279 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( 𝑉 ‘ 𝑖 ) ∈ ℝ ) |
| 369 | simpr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) | |
| 370 | 367 368 369 | nltled | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → 𝑋 ≤ ( 𝑉 ‘ 𝑖 ) ) |
| 371 | 368 367 | subge0d | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( 0 ≤ ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ↔ 𝑋 ≤ ( 𝑉 ‘ 𝑖 ) ) ) |
| 372 | 370 371 | mpbird | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → 0 ≤ ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ) |
| 373 | 294 | eqcomd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) = ( 𝑄 ‘ 𝑖 ) ) |
| 374 | 373 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) = ( 𝑄 ‘ 𝑖 ) ) |
| 375 | 372 374 | breqtrd | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → 0 ≤ ( 𝑄 ‘ 𝑖 ) ) |
| 376 | 375 | adantr | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 0 ≤ ( 𝑄 ‘ 𝑖 ) ) |
| 377 | 207 | adantl | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝑄 ‘ 𝑖 ) < 𝑠 ) |
| 378 | 364 365 366 376 377 | lelttrd | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 0 < 𝑠 ) |
| 379 | 378 | iftrued | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → if ( 0 < 𝑠 , 𝑌 , 𝑊 ) = 𝑌 ) |
| 380 | 379 | oveq2d | ⊢ ( ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) = ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) ) |
| 381 | 380 | mpteq2dva | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) ) = ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) ) ) |
| 382 | 381 | oveq1d | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) = ( ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − 𝑌 ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 383 | 360 363 382 | 3eltr4d | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( 𝑅 − if ( ( 𝑉 ‘ 𝑖 ) < 𝑋 , 𝑊 , 𝑌 ) ) ∈ ( ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 384 | 383 | 3adantl3 | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) < 𝑋 ) → ( 𝑅 − if ( ( 𝑉 ‘ 𝑖 ) < 𝑋 , 𝑊 , 𝑌 ) ) ∈ ( ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 385 | 353 384 | pm2.61dan | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝑅 − if ( ( 𝑉 ‘ 𝑖 ) < 𝑋 , 𝑊 , 𝑌 ) ) ∈ ( ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 386 | 313 250 289 | idlimc | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑄 ‘ 𝑖 ) ∈ ( ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ 𝑠 ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 387 | 386 | 3adant3 | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝑄 ‘ 𝑖 ) ∈ ( ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ 𝑠 ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 388 | 294 | 3adant3 | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝑄 ‘ 𝑖 ) = ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ) |
| 389 | 296 | 3adant3 | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝑉 ‘ 𝑖 ) ∈ ℂ ) |
| 390 | 231 | 3adant3 | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → 𝑋 ∈ ℂ ) |
| 391 | neqne | ⊢ ( ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 → ( 𝑉 ‘ 𝑖 ) ≠ 𝑋 ) | |
| 392 | 391 | 3ad2ant3 | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝑉 ‘ 𝑖 ) ≠ 𝑋 ) |
| 393 | 389 390 392 | subne0d | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ≠ 0 ) |
| 394 | 388 393 | eqnetrd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝑄 ‘ 𝑖 ) ≠ 0 ) |
| 395 | 200 | 3adantl3 | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ¬ 𝑠 = 0 ) |
| 396 | 395 | neqned | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑠 ≠ 0 ) |
| 397 | 249 250 251 266 272 385 387 394 396 | divlimc | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( ( 𝑅 − if ( ( 𝑉 ‘ 𝑖 ) < 𝑋 , 𝑊 , 𝑌 ) ) / ( 𝑄 ‘ 𝑖 ) ) ∈ ( ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 398 | iffalse | ⊢ ( ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 → if ( ( 𝑉 ‘ 𝑖 ) = 𝑋 , 𝐸 , ( ( 𝑅 − if ( ( 𝑉 ‘ 𝑖 ) < 𝑋 , 𝑊 , 𝑌 ) ) / ( 𝑄 ‘ 𝑖 ) ) ) = ( ( 𝑅 − if ( ( 𝑉 ‘ 𝑖 ) < 𝑋 , 𝑊 , 𝑌 ) ) / ( 𝑄 ‘ 𝑖 ) ) ) | |
| 399 | 16 398 | eqtrid | ⊢ ( ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 → 𝐴 = ( ( 𝑅 − if ( ( 𝑉 ‘ 𝑖 ) < 𝑋 , 𝑊 , 𝑌 ) ) / ( 𝑄 ‘ 𝑖 ) ) ) |
| 400 | 399 | 3ad2ant3 | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → 𝐴 = ( ( 𝑅 − if ( ( 𝑉 ‘ 𝑖 ) < 𝑋 , 𝑊 , 𝑌 ) ) / ( 𝑄 ‘ 𝑖 ) ) ) |
| 401 | ioossre | ⊢ ( 𝑋 (,) +∞ ) ⊆ ℝ | |
| 402 | 401 | a1i | ⊢ ( 𝜑 → ( 𝑋 (,) +∞ ) ⊆ ℝ ) |
| 403 | 3 402 | fssresd | ⊢ ( 𝜑 → ( 𝐹 ↾ ( 𝑋 (,) +∞ ) ) : ( 𝑋 (,) +∞ ) ⟶ ℝ ) |
| 404 | 401 57 | sstrid | ⊢ ( 𝜑 → ( 𝑋 (,) +∞ ) ⊆ ℂ ) |
| 405 | 44 | a1i | ⊢ ( 𝜑 → +∞ ∈ ℝ* ) |
| 406 | 1 | ltpnfd | ⊢ ( 𝜑 → 𝑋 < +∞ ) |
| 407 | 62 405 1 406 | lptioo1cn | ⊢ ( 𝜑 → 𝑋 ∈ ( ( limPt ‘ ( TopOpen ‘ ℂfld ) ) ‘ ( 𝑋 (,) +∞ ) ) ) |
| 408 | 403 404 407 5 | limcrecl | ⊢ ( 𝜑 → 𝑌 ∈ ℝ ) |
| 409 | 3 1 408 6 7 | fourierdlem9 | ⊢ ( 𝜑 → 𝐻 : ( - π [,] π ) ⟶ ℝ ) |
| 410 | 409 | adantr | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝐻 : ( - π [,] π ) ⟶ ℝ ) |
| 411 | 410 151 | feqresmpt | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝐻 ↾ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) = ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( 𝐻 ‘ 𝑠 ) ) ) |
| 412 | 151 | sselda | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑠 ∈ ( - π [,] π ) ) |
| 413 | 0cnd | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 0 ∈ ℂ ) | |
| 414 | 263 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ∈ ℂ ) |
| 415 | 258 414 | subcld | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) ∈ ℂ ) |
| 416 | 267 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑠 ∈ ℂ ) |
| 417 | 200 | neqned | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → 𝑠 ≠ 0 ) |
| 418 | 415 416 417 | divcld | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ∈ ℂ ) |
| 419 | 413 418 | ifcld | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → if ( 𝑠 = 0 , 0 , ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) ∈ ℂ ) |
| 420 | 7 | fvmpt2 | ⊢ ( ( 𝑠 ∈ ( - π [,] π ) ∧ if ( 𝑠 = 0 , 0 , ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) ∈ ℂ ) → ( 𝐻 ‘ 𝑠 ) = if ( 𝑠 = 0 , 0 , ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) ) |
| 421 | 412 419 420 | syl2anc | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝐻 ‘ 𝑠 ) = if ( 𝑠 = 0 , 0 , ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) ) |
| 422 | 200 | iffalsed | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → if ( 𝑠 = 0 , 0 , ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) = ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) |
| 423 | 421 422 | eqtrd | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( 𝐻 ‘ 𝑠 ) = ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) |
| 424 | 423 | mpteq2dva | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( 𝐻 ‘ 𝑠 ) ) = ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) ) |
| 425 | 411 424 | eqtrd | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝐻 ↾ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) = ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) ) |
| 426 | 425 | 3adant3 | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( 𝐻 ↾ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) = ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) ) |
| 427 | 426 | oveq1d | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → ( ( 𝐻 ↾ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) = ( ( 𝑠 ∈ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↦ ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − if ( 0 < 𝑠 , 𝑌 , 𝑊 ) ) / 𝑠 ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 428 | 397 400 427 | 3eltr4d | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → 𝐴 ∈ ( ( 𝐻 ↾ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 429 | 428 | 3expa | ⊢ ( ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ¬ ( 𝑉 ‘ 𝑖 ) = 𝑋 ) → 𝐴 ∈ ( ( 𝐻 ↾ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |
| 430 | 248 429 | pm2.61dan | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝐴 ∈ ( ( 𝐻 ↾ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) limℂ ( 𝑄 ‘ 𝑖 ) ) ) |