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Description: Continuity of O and its limits with respect to the S partition. (Contributed by Glauco Siliprandi, 11-Dec-2019)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | fourierdlem86.f | ⊢ ( 𝜑 → 𝐹 : ℝ ⟶ ℝ ) | |
| fourierdlem86.xre | ⊢ ( 𝜑 → 𝑋 ∈ ℝ ) | ||
| fourierdlem86.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 ) ) ) } ) | ||
| fourierdlem86.m | ⊢ ( 𝜑 → 𝑀 ∈ ℕ ) | ||
| fourierdlem86.v | ⊢ ( 𝜑 → 𝑉 ∈ ( 𝑃 ‘ 𝑀 ) ) | ||
| fourierdlem86.fcn | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝐹 ↾ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ∈ ( ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) –cn→ ℂ ) ) | ||
| fourierdlem86.r | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝑅 ∈ ( ( 𝐹 ↾ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) limℂ ( 𝑉 ‘ 𝑖 ) ) ) | ||
| fourierdlem86.l | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝐿 ∈ ( ( 𝐹 ↾ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) limℂ ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) | ||
| fourierdlem86.a | ⊢ ( 𝜑 → 𝐴 ∈ ℝ ) | ||
| fourierdlem86.b | ⊢ ( 𝜑 → 𝐵 ∈ ℝ ) | ||
| fourierdlem86.altb | ⊢ ( 𝜑 → 𝐴 < 𝐵 ) | ||
| fourierdlem86.ab | ⊢ ( 𝜑 → ( 𝐴 [,] 𝐵 ) ⊆ ( - π [,] π ) ) | ||
| fourierdlem86.n0 | ⊢ ( 𝜑 → ¬ 0 ∈ ( 𝐴 [,] 𝐵 ) ) | ||
| fourierdlem86.c | ⊢ ( 𝜑 → 𝐶 ∈ ℝ ) | ||
| fourierdlem86.o | ⊢ 𝑂 = ( 𝑠 ∈ ( 𝐴 [,] 𝐵 ) ↦ ( ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − 𝐶 ) / 𝑠 ) · ( 𝑠 / ( 2 · ( sin ‘ ( 𝑠 / 2 ) ) ) ) ) ) | ||
| fourierdlem86.q | ⊢ 𝑄 = ( 𝑖 ∈ ( 0 ... 𝑀 ) ↦ ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ) | ||
| fourierdlem86.t | ⊢ 𝑇 = ( { 𝐴 , 𝐵 } ∪ ( ran 𝑄 ∩ ( 𝐴 (,) 𝐵 ) ) ) | ||
| fourierdlem86.n | ⊢ 𝑁 = ( ( ♯ ‘ 𝑇 ) − 1 ) | ||
| fourierdlem86.s | ⊢ 𝑆 = ( ℩ 𝑓 𝑓 Isom < , < ( ( 0 ... 𝑁 ) , 𝑇 ) ) | ||
| fourierdlem86.d | ⊢ 𝐷 = ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) | ||
| fourierdlem86.e | ⊢ 𝐸 = ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) | ||
| fourierdlem86.u | ⊢ 𝑈 = ( ℩ 𝑖 ∈ ( 0 ..^ 𝑀 ) ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) | ||
| Assertion | fourierdlem86 | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → ( ( 𝐷 ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ∧ 𝐸 ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ 𝑗 ) ) ) ∧ ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ∈ ( ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) –cn→ ℂ ) ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fourierdlem86.f | ⊢ ( 𝜑 → 𝐹 : ℝ ⟶ ℝ ) | |
| 2 | fourierdlem86.xre | ⊢ ( 𝜑 → 𝑋 ∈ ℝ ) | |
| 3 | fourierdlem86.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 ) ) ) } ) | |
| 4 | fourierdlem86.m | ⊢ ( 𝜑 → 𝑀 ∈ ℕ ) | |
| 5 | fourierdlem86.v | ⊢ ( 𝜑 → 𝑉 ∈ ( 𝑃 ‘ 𝑀 ) ) | |
| 6 | fourierdlem86.fcn | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝐹 ↾ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) ∈ ( ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) –cn→ ℂ ) ) | |
| 7 | fourierdlem86.r | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝑅 ∈ ( ( 𝐹 ↾ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) limℂ ( 𝑉 ‘ 𝑖 ) ) ) | |
| 8 | fourierdlem86.l | ⊢ ( ( 𝜑 ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) → 𝐿 ∈ ( ( 𝐹 ↾ ( ( 𝑉 ‘ 𝑖 ) (,) ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) limℂ ( 𝑉 ‘ ( 𝑖 + 1 ) ) ) ) | |
| 9 | fourierdlem86.a | ⊢ ( 𝜑 → 𝐴 ∈ ℝ ) | |
| 10 | fourierdlem86.b | ⊢ ( 𝜑 → 𝐵 ∈ ℝ ) | |
| 11 | fourierdlem86.altb | ⊢ ( 𝜑 → 𝐴 < 𝐵 ) | |
| 12 | fourierdlem86.ab | ⊢ ( 𝜑 → ( 𝐴 [,] 𝐵 ) ⊆ ( - π [,] π ) ) | |
| 13 | fourierdlem86.n0 | ⊢ ( 𝜑 → ¬ 0 ∈ ( 𝐴 [,] 𝐵 ) ) | |
| 14 | fourierdlem86.c | ⊢ ( 𝜑 → 𝐶 ∈ ℝ ) | |
| 15 | fourierdlem86.o | ⊢ 𝑂 = ( 𝑠 ∈ ( 𝐴 [,] 𝐵 ) ↦ ( ( ( ( 𝐹 ‘ ( 𝑋 + 𝑠 ) ) − 𝐶 ) / 𝑠 ) · ( 𝑠 / ( 2 · ( sin ‘ ( 𝑠 / 2 ) ) ) ) ) ) | |
| 16 | fourierdlem86.q | ⊢ 𝑄 = ( 𝑖 ∈ ( 0 ... 𝑀 ) ↦ ( ( 𝑉 ‘ 𝑖 ) − 𝑋 ) ) | |
| 17 | fourierdlem86.t | ⊢ 𝑇 = ( { 𝐴 , 𝐵 } ∪ ( ran 𝑄 ∩ ( 𝐴 (,) 𝐵 ) ) ) | |
| 18 | fourierdlem86.n | ⊢ 𝑁 = ( ( ♯ ‘ 𝑇 ) − 1 ) | |
| 19 | fourierdlem86.s | ⊢ 𝑆 = ( ℩ 𝑓 𝑓 Isom < , < ( ( 0 ... 𝑁 ) , 𝑇 ) ) | |
| 20 | fourierdlem86.d | ⊢ 𝐷 = ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) | |
| 21 | fourierdlem86.e | ⊢ 𝐸 = ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) | |
| 22 | fourierdlem86.u | ⊢ 𝑈 = ( ℩ 𝑖 ∈ ( 0 ..^ 𝑀 ) ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) | |
| 23 | 2 | adantr | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → 𝑋 ∈ ℝ ) |
| 24 | 4 | adantr | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → 𝑀 ∈ ℕ ) |
| 25 | 5 | adantr | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → 𝑉 ∈ ( 𝑃 ‘ 𝑀 ) ) |
| 26 | 9 | adantr | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → 𝐴 ∈ ℝ ) |
| 27 | 10 | adantr | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → 𝐵 ∈ ℝ ) |
| 28 | 11 | adantr | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → 𝐴 < 𝐵 ) |
| 29 | 12 | adantr | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → ( 𝐴 [,] 𝐵 ) ⊆ ( - π [,] π ) ) |
| 30 | simpr | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → 𝑗 ∈ ( 0 ..^ 𝑁 ) ) | |
| 31 | biid | ⊢ ( ( ( ( ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) ∧ 𝑦 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑦 ) (,) ( 𝑄 ‘ ( 𝑦 + 1 ) ) ) ) ↔ ( ( ( ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) ∧ 𝑦 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑦 ) (,) ( 𝑄 ‘ ( 𝑦 + 1 ) ) ) ) ) | |
| 32 | 23 3 24 25 26 27 28 29 16 17 18 19 30 22 31 | fourierdlem50 | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → ( 𝑈 ∈ ( 0 ..^ 𝑀 ) ∧ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑈 ) (,) ( 𝑄 ‘ ( 𝑈 + 1 ) ) ) ) ) |
| 33 | 32 | simpld | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → 𝑈 ∈ ( 0 ..^ 𝑀 ) ) |
| 34 | id | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) ) | |
| 35 | 32 | simprd | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑈 ) (,) ( 𝑄 ‘ ( 𝑈 + 1 ) ) ) ) |
| 36 | 34 33 35 | jca31 | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → ( ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) ∧ 𝑈 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑈 ) (,) ( 𝑄 ‘ ( 𝑈 + 1 ) ) ) ) ) |
| 37 | nfv | ⊢ Ⅎ 𝑖 ( ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) ∧ 𝑈 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑈 ) (,) ( 𝑄 ‘ ( 𝑈 + 1 ) ) ) ) | |
| 38 | nfv | ⊢ Ⅎ 𝑖 ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) | |
| 39 | nfcsb1v | ⊢ Ⅎ 𝑖 ⦋ 𝑈 / 𝑖 ⦌ 𝐿 | |
| 40 | nfcv | ⊢ Ⅎ 𝑖 ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) | |
| 41 | 38 39 40 | nfif | ⊢ Ⅎ 𝑖 if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) |
| 42 | nfcv | ⊢ Ⅎ 𝑖 − | |
| 43 | nfcv | ⊢ Ⅎ 𝑖 𝐶 | |
| 44 | 41 42 43 | nfov | ⊢ Ⅎ 𝑖 ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) |
| 45 | nfcv | ⊢ Ⅎ 𝑖 / | |
| 46 | nfcv | ⊢ Ⅎ 𝑖 ( 𝑆 ‘ ( 𝑗 + 1 ) ) | |
| 47 | 44 45 46 | nfov | ⊢ Ⅎ 𝑖 ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) |
| 48 | nfcv | ⊢ Ⅎ 𝑖 · | |
| 49 | nfcv | ⊢ Ⅎ 𝑖 ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) | |
| 50 | 47 48 49 | nfov | ⊢ Ⅎ 𝑖 ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) |
| 51 | 50 | nfel1 | ⊢ Ⅎ 𝑖 ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) |
| 52 | nfv | ⊢ Ⅎ 𝑖 ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) | |
| 53 | nfcsb1v | ⊢ Ⅎ 𝑖 ⦋ 𝑈 / 𝑖 ⦌ 𝑅 | |
| 54 | nfcv | ⊢ Ⅎ 𝑖 ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) | |
| 55 | 52 53 54 | nfif | ⊢ Ⅎ 𝑖 if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) |
| 56 | 55 42 43 | nfov | ⊢ Ⅎ 𝑖 ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) |
| 57 | nfcv | ⊢ Ⅎ 𝑖 ( 𝑆 ‘ 𝑗 ) | |
| 58 | 56 45 57 | nfov | ⊢ Ⅎ 𝑖 ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) |
| 59 | nfcv | ⊢ Ⅎ 𝑖 ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) | |
| 60 | 58 48 59 | nfov | ⊢ Ⅎ 𝑖 ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) |
| 61 | 60 | nfel1 | ⊢ Ⅎ 𝑖 ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ 𝑗 ) ) |
| 62 | 51 61 | nfan | ⊢ Ⅎ 𝑖 ( ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ∧ ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ 𝑗 ) ) ) |
| 63 | nfv | ⊢ Ⅎ 𝑖 ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ∈ ( ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) –cn→ ℂ ) | |
| 64 | 62 63 | nfan | ⊢ Ⅎ 𝑖 ( ( ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ∧ ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ 𝑗 ) ) ) ∧ ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ∈ ( ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) –cn→ ℂ ) ) |
| 65 | 37 64 | nfim | ⊢ Ⅎ 𝑖 ( ( ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) ∧ 𝑈 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑈 ) (,) ( 𝑄 ‘ ( 𝑈 + 1 ) ) ) ) → ( ( ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ∧ ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ 𝑗 ) ) ) ∧ ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ∈ ( ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) –cn→ ℂ ) ) ) |
| 66 | eleq1 | ⊢ ( 𝑖 = 𝑈 → ( 𝑖 ∈ ( 0 ..^ 𝑀 ) ↔ 𝑈 ∈ ( 0 ..^ 𝑀 ) ) ) | |
| 67 | 66 | anbi2d | ⊢ ( 𝑖 = 𝑈 → ( ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ↔ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) ∧ 𝑈 ∈ ( 0 ..^ 𝑀 ) ) ) ) |
| 68 | fveq2 | ⊢ ( 𝑖 = 𝑈 → ( 𝑄 ‘ 𝑖 ) = ( 𝑄 ‘ 𝑈 ) ) | |
| 69 | oveq1 | ⊢ ( 𝑖 = 𝑈 → ( 𝑖 + 1 ) = ( 𝑈 + 1 ) ) | |
| 70 | 69 | fveq2d | ⊢ ( 𝑖 = 𝑈 → ( 𝑄 ‘ ( 𝑖 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) ) |
| 71 | 68 70 | oveq12d | ⊢ ( 𝑖 = 𝑈 → ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) = ( ( 𝑄 ‘ 𝑈 ) (,) ( 𝑄 ‘ ( 𝑈 + 1 ) ) ) ) |
| 72 | 71 | sseq2d | ⊢ ( 𝑖 = 𝑈 → ( ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ↔ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑈 ) (,) ( 𝑄 ‘ ( 𝑈 + 1 ) ) ) ) ) |
| 73 | 67 72 | anbi12d | ⊢ ( 𝑖 = 𝑈 → ( ( ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) ↔ ( ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) ∧ 𝑈 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑈 ) (,) ( 𝑄 ‘ ( 𝑈 + 1 ) ) ) ) ) ) |
| 74 | 70 | eqeq2d | ⊢ ( 𝑖 = 𝑈 → ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑖 + 1 ) ) ↔ ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) ) ) |
| 75 | csbeq1a | ⊢ ( 𝑖 = 𝑈 → 𝐿 = ⦋ 𝑈 / 𝑖 ⦌ 𝐿 ) | |
| 76 | 74 75 | ifbieq1d | ⊢ ( 𝑖 = 𝑈 → if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑖 + 1 ) ) , 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) = if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) ) |
| 77 | 76 | oveq1d | ⊢ ( 𝑖 = 𝑈 → ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑖 + 1 ) ) , 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) = ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) ) |
| 78 | 77 | oveq1d | ⊢ ( 𝑖 = 𝑈 → ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑖 + 1 ) ) , 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) = ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) |
| 79 | 78 | oveq1d | ⊢ ( 𝑖 = 𝑈 → ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑖 + 1 ) ) , 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) = ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) ) |
| 80 | 79 | eleq1d | ⊢ ( 𝑖 = 𝑈 → ( ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑖 + 1 ) ) , 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ↔ ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) |
| 81 | 68 | eqeq2d | ⊢ ( 𝑖 = 𝑈 → ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑖 ) ↔ ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) ) ) |
| 82 | csbeq1a | ⊢ ( 𝑖 = 𝑈 → 𝑅 = ⦋ 𝑈 / 𝑖 ⦌ 𝑅 ) | |
| 83 | 81 82 | ifbieq1d | ⊢ ( 𝑖 = 𝑈 → if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑖 ) , 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) = if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) ) |
| 84 | 83 | oveq1d | ⊢ ( 𝑖 = 𝑈 → ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑖 ) , 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) = ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) ) |
| 85 | 84 | oveq1d | ⊢ ( 𝑖 = 𝑈 → ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑖 ) , 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) = ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) ) |
| 86 | 85 | oveq1d | ⊢ ( 𝑖 = 𝑈 → ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑖 ) , 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) = ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) ) |
| 87 | 86 | eleq1d | ⊢ ( 𝑖 = 𝑈 → ( ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑖 ) , 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ 𝑗 ) ) ↔ ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ 𝑗 ) ) ) ) |
| 88 | 80 87 | anbi12d | ⊢ ( 𝑖 = 𝑈 → ( ( ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑖 + 1 ) ) , 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ∧ ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑖 ) , 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ 𝑗 ) ) ) ↔ ( ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ∧ ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ 𝑗 ) ) ) ) ) |
| 89 | 88 | anbi1d | ⊢ ( 𝑖 = 𝑈 → ( ( ( ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑖 + 1 ) ) , 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ∧ ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑖 ) , 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ 𝑗 ) ) ) ∧ ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ∈ ( ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) –cn→ ℂ ) ) ↔ ( ( ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ∧ ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ 𝑗 ) ) ) ∧ ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ∈ ( ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) –cn→ ℂ ) ) ) ) |
| 90 | 73 89 | imbi12d | ⊢ ( 𝑖 = 𝑈 → ( ( ( ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( ( ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑖 + 1 ) ) , 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ∧ ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑖 ) , 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ 𝑗 ) ) ) ∧ ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ∈ ( ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) –cn→ ℂ ) ) ) ↔ ( ( ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) ∧ 𝑈 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑈 ) (,) ( 𝑄 ‘ ( 𝑈 + 1 ) ) ) ) → ( ( ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ∧ ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ 𝑗 ) ) ) ∧ ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ∈ ( ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) –cn→ ℂ ) ) ) ) ) |
| 91 | eqid | ⊢ ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑖 + 1 ) ) , 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) = ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑖 + 1 ) ) , 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) | |
| 92 | eqid | ⊢ ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑖 ) , 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) = ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑖 ) , 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) | |
| 93 | biid | ⊢ ( ( ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) ↔ ( ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) ) | |
| 94 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 91 92 93 | fourierdlem76 | ⊢ ( ( ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) ∧ 𝑖 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑖 ) (,) ( 𝑄 ‘ ( 𝑖 + 1 ) ) ) ) → ( ( ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑖 + 1 ) ) , 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ∧ ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑖 ) , 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ 𝑗 ) ) ) ∧ ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ∈ ( ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) –cn→ ℂ ) ) ) |
| 95 | 65 90 94 | vtoclg1f | ⊢ ( 𝑈 ∈ ( 0 ..^ 𝑀 ) → ( ( ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) ∧ 𝑈 ∈ ( 0 ..^ 𝑀 ) ) ∧ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ⊆ ( ( 𝑄 ‘ 𝑈 ) (,) ( 𝑄 ‘ ( 𝑈 + 1 ) ) ) ) → ( ( ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ∧ ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ 𝑗 ) ) ) ∧ ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ∈ ( ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) –cn→ ℂ ) ) ) ) |
| 96 | 33 36 95 | sylc | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → ( ( ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ∧ ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ 𝑗 ) ) ) ∧ ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ∈ ( ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) –cn→ ℂ ) ) ) |
| 97 | 96 | simpld | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → ( ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ∧ ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ 𝑗 ) ) ) ) |
| 98 | 97 | simpld | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → ( ( ( if ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) = ( 𝑄 ‘ ( 𝑈 + 1 ) ) , ⦋ 𝑈 / 𝑖 ⦌ 𝐿 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) · ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ ( 𝑗 + 1 ) ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) |
| 99 | 20 98 | eqeltrid | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → 𝐷 ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) |
| 100 | 97 | simprd | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → ( ( ( if ( ( 𝑆 ‘ 𝑗 ) = ( 𝑄 ‘ 𝑈 ) , ⦋ 𝑈 / 𝑖 ⦌ 𝑅 , ( 𝐹 ‘ ( 𝑋 + ( 𝑆 ‘ 𝑗 ) ) ) ) − 𝐶 ) / ( 𝑆 ‘ 𝑗 ) ) · ( ( 𝑆 ‘ 𝑗 ) / ( 2 · ( sin ‘ ( ( 𝑆 ‘ 𝑗 ) / 2 ) ) ) ) ) ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ 𝑗 ) ) ) |
| 101 | 21 100 | eqeltrid | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → 𝐸 ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ 𝑗 ) ) ) |
| 102 | 96 | simprd | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ∈ ( ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) –cn→ ℂ ) ) |
| 103 | 99 101 102 | jca31 | ⊢ ( ( 𝜑 ∧ 𝑗 ∈ ( 0 ..^ 𝑁 ) ) → ( ( 𝐷 ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ∧ 𝐸 ∈ ( ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) limℂ ( 𝑆 ‘ 𝑗 ) ) ) ∧ ( 𝑂 ↾ ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) ) ∈ ( ( ( 𝑆 ‘ 𝑗 ) (,) ( 𝑆 ‘ ( 𝑗 + 1 ) ) ) –cn→ ℂ ) ) ) |