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Description: Derivative of a polynomial, explicit sum version. (Contributed by Stefan O'Rear, 13-Nov-2014) (Revised by Mario Carneiro, 11-Feb-2015)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | dvply1.f | ⊢ ( 𝜑 → 𝐹 = ( 𝑧 ∈ ℂ ↦ Σ 𝑘 ∈ ( 0 ... 𝑁 ) ( ( 𝐴 ‘ 𝑘 ) · ( 𝑧 ↑ 𝑘 ) ) ) ) | |
| dvply1.g | ⊢ ( 𝜑 → 𝐺 = ( 𝑧 ∈ ℂ ↦ Σ 𝑘 ∈ ( 0 ... ( 𝑁 − 1 ) ) ( ( 𝐵 ‘ 𝑘 ) · ( 𝑧 ↑ 𝑘 ) ) ) ) | ||
| dvply1.a | ⊢ ( 𝜑 → 𝐴 : ℕ0 ⟶ ℂ ) | ||
| dvply1.b | ⊢ 𝐵 = ( 𝑘 ∈ ℕ0 ↦ ( ( 𝑘 + 1 ) · ( 𝐴 ‘ ( 𝑘 + 1 ) ) ) ) | ||
| dvply1.n | ⊢ ( 𝜑 → 𝑁 ∈ ℕ0 ) | ||
| Assertion | dvply1 | ⊢ ( 𝜑 → ( ℂ D 𝐹 ) = 𝐺 ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dvply1.f | ⊢ ( 𝜑 → 𝐹 = ( 𝑧 ∈ ℂ ↦ Σ 𝑘 ∈ ( 0 ... 𝑁 ) ( ( 𝐴 ‘ 𝑘 ) · ( 𝑧 ↑ 𝑘 ) ) ) ) | |
| 2 | dvply1.g | ⊢ ( 𝜑 → 𝐺 = ( 𝑧 ∈ ℂ ↦ Σ 𝑘 ∈ ( 0 ... ( 𝑁 − 1 ) ) ( ( 𝐵 ‘ 𝑘 ) · ( 𝑧 ↑ 𝑘 ) ) ) ) | |
| 3 | dvply1.a | ⊢ ( 𝜑 → 𝐴 : ℕ0 ⟶ ℂ ) | |
| 4 | dvply1.b | ⊢ 𝐵 = ( 𝑘 ∈ ℕ0 ↦ ( ( 𝑘 + 1 ) · ( 𝐴 ‘ ( 𝑘 + 1 ) ) ) ) | |
| 5 | dvply1.n | ⊢ ( 𝜑 → 𝑁 ∈ ℕ0 ) | |
| 6 | 1 | oveq2d | ⊢ ( 𝜑 → ( ℂ D 𝐹 ) = ( ℂ D ( 𝑧 ∈ ℂ ↦ Σ 𝑘 ∈ ( 0 ... 𝑁 ) ( ( 𝐴 ‘ 𝑘 ) · ( 𝑧 ↑ 𝑘 ) ) ) ) ) |
| 7 | eqid | ⊢ ( TopOpen ‘ ℂfld ) = ( TopOpen ‘ ℂfld ) | |
| 8 | 7 | cnfldtopon | ⊢ ( TopOpen ‘ ℂfld ) ∈ ( TopOn ‘ ℂ ) |
| 9 | 8 | toponrestid | ⊢ ( TopOpen ‘ ℂfld ) = ( ( TopOpen ‘ ℂfld ) ↾t ℂ ) |
| 10 | cnelprrecn | ⊢ ℂ ∈ { ℝ , ℂ } | |
| 11 | 10 | a1i | ⊢ ( 𝜑 → ℂ ∈ { ℝ , ℂ } ) |
| 12 | 7 | cnfldtop | ⊢ ( TopOpen ‘ ℂfld ) ∈ Top |
| 13 | unicntop | ⊢ ℂ = ∪ ( TopOpen ‘ ℂfld ) | |
| 14 | 13 | topopn | ⊢ ( ( TopOpen ‘ ℂfld ) ∈ Top → ℂ ∈ ( TopOpen ‘ ℂfld ) ) |
| 15 | 12 14 | mp1i | ⊢ ( 𝜑 → ℂ ∈ ( TopOpen ‘ ℂfld ) ) |
| 16 | fzfid | ⊢ ( 𝜑 → ( 0 ... 𝑁 ) ∈ Fin ) | |
| 17 | elfznn0 | ⊢ ( 𝑘 ∈ ( 0 ... 𝑁 ) → 𝑘 ∈ ℕ0 ) | |
| 18 | ffvelcdm | ⊢ ( ( 𝐴 : ℕ0 ⟶ ℂ ∧ 𝑘 ∈ ℕ0 ) → ( 𝐴 ‘ 𝑘 ) ∈ ℂ ) | |
| 19 | 3 17 18 | syl2an | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ) → ( 𝐴 ‘ 𝑘 ) ∈ ℂ ) |
| 20 | 19 | adantr | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ) ∧ 𝑧 ∈ ℂ ) → ( 𝐴 ‘ 𝑘 ) ∈ ℂ ) |
| 21 | simpr | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ) ∧ 𝑧 ∈ ℂ ) → 𝑧 ∈ ℂ ) | |
| 22 | 17 | ad2antlr | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ) ∧ 𝑧 ∈ ℂ ) → 𝑘 ∈ ℕ0 ) |
| 23 | 21 22 | expcld | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ) ∧ 𝑧 ∈ ℂ ) → ( 𝑧 ↑ 𝑘 ) ∈ ℂ ) |
| 24 | 20 23 | mulcld | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ) ∧ 𝑧 ∈ ℂ ) → ( ( 𝐴 ‘ 𝑘 ) · ( 𝑧 ↑ 𝑘 ) ) ∈ ℂ ) |
| 25 | 24 | 3impa | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ∧ 𝑧 ∈ ℂ ) → ( ( 𝐴 ‘ 𝑘 ) · ( 𝑧 ↑ 𝑘 ) ) ∈ ℂ ) |
| 26 | 19 | 3adant3 | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ∧ 𝑧 ∈ ℂ ) → ( 𝐴 ‘ 𝑘 ) ∈ ℂ ) |
| 27 | 0cnd | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 = 0 ) → 0 ∈ ℂ ) | |
| 28 | simpl2 | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ∧ 𝑧 ∈ ℂ ) ∧ ¬ 𝑘 = 0 ) → 𝑘 ∈ ( 0 ... 𝑁 ) ) | |
| 29 | 28 17 | syl | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ∧ 𝑧 ∈ ℂ ) ∧ ¬ 𝑘 = 0 ) → 𝑘 ∈ ℕ0 ) |
| 30 | 29 | nn0cnd | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ∧ 𝑧 ∈ ℂ ) ∧ ¬ 𝑘 = 0 ) → 𝑘 ∈ ℂ ) |
| 31 | simpl3 | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ∧ 𝑧 ∈ ℂ ) ∧ ¬ 𝑘 = 0 ) → 𝑧 ∈ ℂ ) | |
| 32 | simpr | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ∧ 𝑧 ∈ ℂ ) ∧ ¬ 𝑘 = 0 ) → ¬ 𝑘 = 0 ) | |
| 33 | elnn0 | ⊢ ( 𝑘 ∈ ℕ0 ↔ ( 𝑘 ∈ ℕ ∨ 𝑘 = 0 ) ) | |
| 34 | 29 33 | sylib | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ∧ 𝑧 ∈ ℂ ) ∧ ¬ 𝑘 = 0 ) → ( 𝑘 ∈ ℕ ∨ 𝑘 = 0 ) ) |
| 35 | orel2 | ⊢ ( ¬ 𝑘 = 0 → ( ( 𝑘 ∈ ℕ ∨ 𝑘 = 0 ) → 𝑘 ∈ ℕ ) ) | |
| 36 | 32 34 35 | sylc | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ∧ 𝑧 ∈ ℂ ) ∧ ¬ 𝑘 = 0 ) → 𝑘 ∈ ℕ ) |
| 37 | nnm1nn0 | ⊢ ( 𝑘 ∈ ℕ → ( 𝑘 − 1 ) ∈ ℕ0 ) | |
| 38 | 36 37 | syl | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ∧ 𝑧 ∈ ℂ ) ∧ ¬ 𝑘 = 0 ) → ( 𝑘 − 1 ) ∈ ℕ0 ) |
| 39 | 31 38 | expcld | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ∧ 𝑧 ∈ ℂ ) ∧ ¬ 𝑘 = 0 ) → ( 𝑧 ↑ ( 𝑘 − 1 ) ) ∈ ℂ ) |
| 40 | 30 39 | mulcld | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ∧ 𝑧 ∈ ℂ ) ∧ ¬ 𝑘 = 0 ) → ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ∈ ℂ ) |
| 41 | 27 40 | ifclda | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ∧ 𝑧 ∈ ℂ ) → if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ∈ ℂ ) |
| 42 | 26 41 | mulcld | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ∧ 𝑧 ∈ ℂ ) → ( ( 𝐴 ‘ 𝑘 ) · if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ) ∈ ℂ ) |
| 43 | 10 | a1i | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ) → ℂ ∈ { ℝ , ℂ } ) |
| 44 | c0ex | ⊢ 0 ∈ V | |
| 45 | ovex | ⊢ ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ∈ V | |
| 46 | 44 45 | ifex | ⊢ if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ∈ V |
| 47 | 46 | a1i | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ) ∧ 𝑧 ∈ ℂ ) → if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ∈ V ) |
| 48 | 17 | adantl | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ) → 𝑘 ∈ ℕ0 ) |
| 49 | dvexp2 | ⊢ ( 𝑘 ∈ ℕ0 → ( ℂ D ( 𝑧 ∈ ℂ ↦ ( 𝑧 ↑ 𝑘 ) ) ) = ( 𝑧 ∈ ℂ ↦ if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ) ) | |
| 50 | 48 49 | syl | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ) → ( ℂ D ( 𝑧 ∈ ℂ ↦ ( 𝑧 ↑ 𝑘 ) ) ) = ( 𝑧 ∈ ℂ ↦ if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ) ) |
| 51 | 43 23 47 50 19 | dvmptcmul | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ) → ( ℂ D ( 𝑧 ∈ ℂ ↦ ( ( 𝐴 ‘ 𝑘 ) · ( 𝑧 ↑ 𝑘 ) ) ) ) = ( 𝑧 ∈ ℂ ↦ ( ( 𝐴 ‘ 𝑘 ) · if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ) ) ) |
| 52 | 9 7 11 15 16 25 42 51 | dvmptfsum | ⊢ ( 𝜑 → ( ℂ D ( 𝑧 ∈ ℂ ↦ Σ 𝑘 ∈ ( 0 ... 𝑁 ) ( ( 𝐴 ‘ 𝑘 ) · ( 𝑧 ↑ 𝑘 ) ) ) ) = ( 𝑧 ∈ ℂ ↦ Σ 𝑘 ∈ ( 0 ... 𝑁 ) ( ( 𝐴 ‘ 𝑘 ) · if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ) ) ) |
| 53 | elfznn | ⊢ ( 𝑘 ∈ ( 1 ... 𝑁 ) → 𝑘 ∈ ℕ ) | |
| 54 | 53 | nnne0d | ⊢ ( 𝑘 ∈ ( 1 ... 𝑁 ) → 𝑘 ≠ 0 ) |
| 55 | 54 | neneqd | ⊢ ( 𝑘 ∈ ( 1 ... 𝑁 ) → ¬ 𝑘 = 0 ) |
| 56 | 55 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 1 ... 𝑁 ) ) → ¬ 𝑘 = 0 ) |
| 57 | 56 | iffalsed | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 1 ... 𝑁 ) ) → if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) = ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) |
| 58 | 57 | oveq2d | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 1 ... 𝑁 ) ) → ( ( 𝐴 ‘ 𝑘 ) · if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ) = ( ( 𝐴 ‘ 𝑘 ) · ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ) |
| 59 | 58 | sumeq2dv | ⊢ ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) → Σ 𝑘 ∈ ( 1 ... 𝑁 ) ( ( 𝐴 ‘ 𝑘 ) · if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ) = Σ 𝑘 ∈ ( 1 ... 𝑁 ) ( ( 𝐴 ‘ 𝑘 ) · ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ) |
| 60 | 1eluzge0 | ⊢ 1 ∈ ( ℤ≥ ‘ 0 ) | |
| 61 | fzss1 | ⊢ ( 1 ∈ ( ℤ≥ ‘ 0 ) → ( 1 ... 𝑁 ) ⊆ ( 0 ... 𝑁 ) ) | |
| 62 | 60 61 | mp1i | ⊢ ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) → ( 1 ... 𝑁 ) ⊆ ( 0 ... 𝑁 ) ) |
| 63 | 3 | adantr | ⊢ ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) → 𝐴 : ℕ0 ⟶ ℂ ) |
| 64 | 53 | nnnn0d | ⊢ ( 𝑘 ∈ ( 1 ... 𝑁 ) → 𝑘 ∈ ℕ0 ) |
| 65 | 63 64 18 | syl2an | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 1 ... 𝑁 ) ) → ( 𝐴 ‘ 𝑘 ) ∈ ℂ ) |
| 66 | 54 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 1 ... 𝑁 ) ) → 𝑘 ≠ 0 ) |
| 67 | 66 | neneqd | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 1 ... 𝑁 ) ) → ¬ 𝑘 = 0 ) |
| 68 | 67 | iffalsed | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 1 ... 𝑁 ) ) → if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) = ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) |
| 69 | 64 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 1 ... 𝑁 ) ) → 𝑘 ∈ ℕ0 ) |
| 70 | 69 | nn0cnd | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 1 ... 𝑁 ) ) → 𝑘 ∈ ℂ ) |
| 71 | simplr | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 1 ... 𝑁 ) ) → 𝑧 ∈ ℂ ) | |
| 72 | 53 37 | syl | ⊢ ( 𝑘 ∈ ( 1 ... 𝑁 ) → ( 𝑘 − 1 ) ∈ ℕ0 ) |
| 73 | 72 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 1 ... 𝑁 ) ) → ( 𝑘 − 1 ) ∈ ℕ0 ) |
| 74 | 71 73 | expcld | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 1 ... 𝑁 ) ) → ( 𝑧 ↑ ( 𝑘 − 1 ) ) ∈ ℂ ) |
| 75 | 70 74 | mulcld | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 1 ... 𝑁 ) ) → ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ∈ ℂ ) |
| 76 | 68 75 | eqeltrd | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 1 ... 𝑁 ) ) → if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ∈ ℂ ) |
| 77 | 65 76 | mulcld | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 1 ... 𝑁 ) ) → ( ( 𝐴 ‘ 𝑘 ) · if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ) ∈ ℂ ) |
| 78 | eldifn | ⊢ ( 𝑘 ∈ ( ( 0 ... 𝑁 ) ∖ ( 1 ... 𝑁 ) ) → ¬ 𝑘 ∈ ( 1 ... 𝑁 ) ) | |
| 79 | 0p1e1 | ⊢ ( 0 + 1 ) = 1 | |
| 80 | 79 | oveq1i | ⊢ ( ( 0 + 1 ) ... 𝑁 ) = ( 1 ... 𝑁 ) |
| 81 | 80 | eleq2i | ⊢ ( 𝑘 ∈ ( ( 0 + 1 ) ... 𝑁 ) ↔ 𝑘 ∈ ( 1 ... 𝑁 ) ) |
| 82 | 78 81 | sylnibr | ⊢ ( 𝑘 ∈ ( ( 0 ... 𝑁 ) ∖ ( 1 ... 𝑁 ) ) → ¬ 𝑘 ∈ ( ( 0 + 1 ) ... 𝑁 ) ) |
| 83 | 82 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( ( 0 ... 𝑁 ) ∖ ( 1 ... 𝑁 ) ) ) → ¬ 𝑘 ∈ ( ( 0 + 1 ) ... 𝑁 ) ) |
| 84 | eldifi | ⊢ ( 𝑘 ∈ ( ( 0 ... 𝑁 ) ∖ ( 1 ... 𝑁 ) ) → 𝑘 ∈ ( 0 ... 𝑁 ) ) | |
| 85 | 84 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( ( 0 ... 𝑁 ) ∖ ( 1 ... 𝑁 ) ) ) → 𝑘 ∈ ( 0 ... 𝑁 ) ) |
| 86 | nn0uz | ⊢ ℕ0 = ( ℤ≥ ‘ 0 ) | |
| 87 | 5 86 | eleqtrdi | ⊢ ( 𝜑 → 𝑁 ∈ ( ℤ≥ ‘ 0 ) ) |
| 88 | 87 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( ( 0 ... 𝑁 ) ∖ ( 1 ... 𝑁 ) ) ) → 𝑁 ∈ ( ℤ≥ ‘ 0 ) ) |
| 89 | elfzp12 | ⊢ ( 𝑁 ∈ ( ℤ≥ ‘ 0 ) → ( 𝑘 ∈ ( 0 ... 𝑁 ) ↔ ( 𝑘 = 0 ∨ 𝑘 ∈ ( ( 0 + 1 ) ... 𝑁 ) ) ) ) | |
| 90 | 88 89 | syl | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( ( 0 ... 𝑁 ) ∖ ( 1 ... 𝑁 ) ) ) → ( 𝑘 ∈ ( 0 ... 𝑁 ) ↔ ( 𝑘 = 0 ∨ 𝑘 ∈ ( ( 0 + 1 ) ... 𝑁 ) ) ) ) |
| 91 | 85 90 | mpbid | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( ( 0 ... 𝑁 ) ∖ ( 1 ... 𝑁 ) ) ) → ( 𝑘 = 0 ∨ 𝑘 ∈ ( ( 0 + 1 ) ... 𝑁 ) ) ) |
| 92 | orel2 | ⊢ ( ¬ 𝑘 ∈ ( ( 0 + 1 ) ... 𝑁 ) → ( ( 𝑘 = 0 ∨ 𝑘 ∈ ( ( 0 + 1 ) ... 𝑁 ) ) → 𝑘 = 0 ) ) | |
| 93 | 83 91 92 | sylc | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( ( 0 ... 𝑁 ) ∖ ( 1 ... 𝑁 ) ) ) → 𝑘 = 0 ) |
| 94 | 93 | iftrued | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( ( 0 ... 𝑁 ) ∖ ( 1 ... 𝑁 ) ) ) → if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) = 0 ) |
| 95 | 94 | oveq2d | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( ( 0 ... 𝑁 ) ∖ ( 1 ... 𝑁 ) ) ) → ( ( 𝐴 ‘ 𝑘 ) · if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ) = ( ( 𝐴 ‘ 𝑘 ) · 0 ) ) |
| 96 | 63 17 18 | syl2an | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ) → ( 𝐴 ‘ 𝑘 ) ∈ ℂ ) |
| 97 | 96 | mul01d | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 0 ... 𝑁 ) ) → ( ( 𝐴 ‘ 𝑘 ) · 0 ) = 0 ) |
| 98 | 84 97 | sylan2 | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( ( 0 ... 𝑁 ) ∖ ( 1 ... 𝑁 ) ) ) → ( ( 𝐴 ‘ 𝑘 ) · 0 ) = 0 ) |
| 99 | 95 98 | eqtrd | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( ( 0 ... 𝑁 ) ∖ ( 1 ... 𝑁 ) ) ) → ( ( 𝐴 ‘ 𝑘 ) · if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ) = 0 ) |
| 100 | fzfid | ⊢ ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) → ( 0 ... 𝑁 ) ∈ Fin ) | |
| 101 | 62 77 99 100 | fsumss | ⊢ ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) → Σ 𝑘 ∈ ( 1 ... 𝑁 ) ( ( 𝐴 ‘ 𝑘 ) · if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ) = Σ 𝑘 ∈ ( 0 ... 𝑁 ) ( ( 𝐴 ‘ 𝑘 ) · if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ) ) |
| 102 | elfznn0 | ⊢ ( 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) → 𝑗 ∈ ℕ0 ) | |
| 103 | 102 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) ) → 𝑗 ∈ ℕ0 ) |
| 104 | 103 | nn0cnd | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) ) → 𝑗 ∈ ℂ ) |
| 105 | ax-1cn | ⊢ 1 ∈ ℂ | |
| 106 | pncan | ⊢ ( ( 𝑗 ∈ ℂ ∧ 1 ∈ ℂ ) → ( ( 𝑗 + 1 ) − 1 ) = 𝑗 ) | |
| 107 | 104 105 106 | sylancl | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) ) → ( ( 𝑗 + 1 ) − 1 ) = 𝑗 ) |
| 108 | 107 | oveq2d | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) ) → ( 𝑧 ↑ ( ( 𝑗 + 1 ) − 1 ) ) = ( 𝑧 ↑ 𝑗 ) ) |
| 109 | 108 | oveq2d | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) ) → ( ( 𝑗 + 1 ) · ( 𝑧 ↑ ( ( 𝑗 + 1 ) − 1 ) ) ) = ( ( 𝑗 + 1 ) · ( 𝑧 ↑ 𝑗 ) ) ) |
| 110 | 109 | oveq2d | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) ) → ( ( 𝐴 ‘ ( 𝑗 + 1 ) ) · ( ( 𝑗 + 1 ) · ( 𝑧 ↑ ( ( 𝑗 + 1 ) − 1 ) ) ) ) = ( ( 𝐴 ‘ ( 𝑗 + 1 ) ) · ( ( 𝑗 + 1 ) · ( 𝑧 ↑ 𝑗 ) ) ) ) |
| 111 | 3 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) ) → 𝐴 : ℕ0 ⟶ ℂ ) |
| 112 | peano2nn0 | ⊢ ( 𝑗 ∈ ℕ0 → ( 𝑗 + 1 ) ∈ ℕ0 ) | |
| 113 | 102 112 | syl | ⊢ ( 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) → ( 𝑗 + 1 ) ∈ ℕ0 ) |
| 114 | 113 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) ) → ( 𝑗 + 1 ) ∈ ℕ0 ) |
| 115 | 111 114 | ffvelcdmd | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) ) → ( 𝐴 ‘ ( 𝑗 + 1 ) ) ∈ ℂ ) |
| 116 | 114 | nn0cnd | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) ) → ( 𝑗 + 1 ) ∈ ℂ ) |
| 117 | simplr | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) ) → 𝑧 ∈ ℂ ) | |
| 118 | 117 103 | expcld | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) ) → ( 𝑧 ↑ 𝑗 ) ∈ ℂ ) |
| 119 | 115 116 118 | mulassd | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) ) → ( ( ( 𝐴 ‘ ( 𝑗 + 1 ) ) · ( 𝑗 + 1 ) ) · ( 𝑧 ↑ 𝑗 ) ) = ( ( 𝐴 ‘ ( 𝑗 + 1 ) ) · ( ( 𝑗 + 1 ) · ( 𝑧 ↑ 𝑗 ) ) ) ) |
| 120 | 115 116 | mulcomd | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) ) → ( ( 𝐴 ‘ ( 𝑗 + 1 ) ) · ( 𝑗 + 1 ) ) = ( ( 𝑗 + 1 ) · ( 𝐴 ‘ ( 𝑗 + 1 ) ) ) ) |
| 121 | 120 | oveq1d | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) ) → ( ( ( 𝐴 ‘ ( 𝑗 + 1 ) ) · ( 𝑗 + 1 ) ) · ( 𝑧 ↑ 𝑗 ) ) = ( ( ( 𝑗 + 1 ) · ( 𝐴 ‘ ( 𝑗 + 1 ) ) ) · ( 𝑧 ↑ 𝑗 ) ) ) |
| 122 | 110 119 121 | 3eqtr2d | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) ) → ( ( 𝐴 ‘ ( 𝑗 + 1 ) ) · ( ( 𝑗 + 1 ) · ( 𝑧 ↑ ( ( 𝑗 + 1 ) − 1 ) ) ) ) = ( ( ( 𝑗 + 1 ) · ( 𝐴 ‘ ( 𝑗 + 1 ) ) ) · ( 𝑧 ↑ 𝑗 ) ) ) |
| 123 | 122 | sumeq2dv | ⊢ ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) → Σ 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) ( ( 𝐴 ‘ ( 𝑗 + 1 ) ) · ( ( 𝑗 + 1 ) · ( 𝑧 ↑ ( ( 𝑗 + 1 ) − 1 ) ) ) ) = Σ 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) ( ( ( 𝑗 + 1 ) · ( 𝐴 ‘ ( 𝑗 + 1 ) ) ) · ( 𝑧 ↑ 𝑗 ) ) ) |
| 124 | 1m1e0 | ⊢ ( 1 − 1 ) = 0 | |
| 125 | 124 | oveq1i | ⊢ ( ( 1 − 1 ) ... ( 𝑁 − 1 ) ) = ( 0 ... ( 𝑁 − 1 ) ) |
| 126 | 125 | sumeq1i | ⊢ Σ 𝑗 ∈ ( ( 1 − 1 ) ... ( 𝑁 − 1 ) ) ( ( 𝐴 ‘ ( 𝑗 + 1 ) ) · ( ( 𝑗 + 1 ) · ( 𝑧 ↑ ( ( 𝑗 + 1 ) − 1 ) ) ) ) = Σ 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) ( ( 𝐴 ‘ ( 𝑗 + 1 ) ) · ( ( 𝑗 + 1 ) · ( 𝑧 ↑ ( ( 𝑗 + 1 ) − 1 ) ) ) ) |
| 127 | oveq1 | ⊢ ( 𝑘 = 𝑗 → ( 𝑘 + 1 ) = ( 𝑗 + 1 ) ) | |
| 128 | fvoveq1 | ⊢ ( 𝑘 = 𝑗 → ( 𝐴 ‘ ( 𝑘 + 1 ) ) = ( 𝐴 ‘ ( 𝑗 + 1 ) ) ) | |
| 129 | 127 128 | oveq12d | ⊢ ( 𝑘 = 𝑗 → ( ( 𝑘 + 1 ) · ( 𝐴 ‘ ( 𝑘 + 1 ) ) ) = ( ( 𝑗 + 1 ) · ( 𝐴 ‘ ( 𝑗 + 1 ) ) ) ) |
| 130 | oveq2 | ⊢ ( 𝑘 = 𝑗 → ( 𝑧 ↑ 𝑘 ) = ( 𝑧 ↑ 𝑗 ) ) | |
| 131 | 129 130 | oveq12d | ⊢ ( 𝑘 = 𝑗 → ( ( ( 𝑘 + 1 ) · ( 𝐴 ‘ ( 𝑘 + 1 ) ) ) · ( 𝑧 ↑ 𝑘 ) ) = ( ( ( 𝑗 + 1 ) · ( 𝐴 ‘ ( 𝑗 + 1 ) ) ) · ( 𝑧 ↑ 𝑗 ) ) ) |
| 132 | 131 | cbvsumv | ⊢ Σ 𝑘 ∈ ( 0 ... ( 𝑁 − 1 ) ) ( ( ( 𝑘 + 1 ) · ( 𝐴 ‘ ( 𝑘 + 1 ) ) ) · ( 𝑧 ↑ 𝑘 ) ) = Σ 𝑗 ∈ ( 0 ... ( 𝑁 − 1 ) ) ( ( ( 𝑗 + 1 ) · ( 𝐴 ‘ ( 𝑗 + 1 ) ) ) · ( 𝑧 ↑ 𝑗 ) ) |
| 133 | 123 126 132 | 3eqtr4g | ⊢ ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) → Σ 𝑗 ∈ ( ( 1 − 1 ) ... ( 𝑁 − 1 ) ) ( ( 𝐴 ‘ ( 𝑗 + 1 ) ) · ( ( 𝑗 + 1 ) · ( 𝑧 ↑ ( ( 𝑗 + 1 ) − 1 ) ) ) ) = Σ 𝑘 ∈ ( 0 ... ( 𝑁 − 1 ) ) ( ( ( 𝑘 + 1 ) · ( 𝐴 ‘ ( 𝑘 + 1 ) ) ) · ( 𝑧 ↑ 𝑘 ) ) ) |
| 134 | 1zzd | ⊢ ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) → 1 ∈ ℤ ) | |
| 135 | 5 | adantr | ⊢ ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) → 𝑁 ∈ ℕ0 ) |
| 136 | 135 | nn0zd | ⊢ ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) → 𝑁 ∈ ℤ ) |
| 137 | 65 75 | mulcld | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 1 ... 𝑁 ) ) → ( ( 𝐴 ‘ 𝑘 ) · ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ∈ ℂ ) |
| 138 | fveq2 | ⊢ ( 𝑘 = ( 𝑗 + 1 ) → ( 𝐴 ‘ 𝑘 ) = ( 𝐴 ‘ ( 𝑗 + 1 ) ) ) | |
| 139 | id | ⊢ ( 𝑘 = ( 𝑗 + 1 ) → 𝑘 = ( 𝑗 + 1 ) ) | |
| 140 | oveq1 | ⊢ ( 𝑘 = ( 𝑗 + 1 ) → ( 𝑘 − 1 ) = ( ( 𝑗 + 1 ) − 1 ) ) | |
| 141 | 140 | oveq2d | ⊢ ( 𝑘 = ( 𝑗 + 1 ) → ( 𝑧 ↑ ( 𝑘 − 1 ) ) = ( 𝑧 ↑ ( ( 𝑗 + 1 ) − 1 ) ) ) |
| 142 | 139 141 | oveq12d | ⊢ ( 𝑘 = ( 𝑗 + 1 ) → ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) = ( ( 𝑗 + 1 ) · ( 𝑧 ↑ ( ( 𝑗 + 1 ) − 1 ) ) ) ) |
| 143 | 138 142 | oveq12d | ⊢ ( 𝑘 = ( 𝑗 + 1 ) → ( ( 𝐴 ‘ 𝑘 ) · ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) = ( ( 𝐴 ‘ ( 𝑗 + 1 ) ) · ( ( 𝑗 + 1 ) · ( 𝑧 ↑ ( ( 𝑗 + 1 ) − 1 ) ) ) ) ) |
| 144 | 134 134 136 137 143 | fsumshftm | ⊢ ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) → Σ 𝑘 ∈ ( 1 ... 𝑁 ) ( ( 𝐴 ‘ 𝑘 ) · ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) = Σ 𝑗 ∈ ( ( 1 − 1 ) ... ( 𝑁 − 1 ) ) ( ( 𝐴 ‘ ( 𝑗 + 1 ) ) · ( ( 𝑗 + 1 ) · ( 𝑧 ↑ ( ( 𝑗 + 1 ) − 1 ) ) ) ) ) |
| 145 | elfznn0 | ⊢ ( 𝑘 ∈ ( 0 ... ( 𝑁 − 1 ) ) → 𝑘 ∈ ℕ0 ) | |
| 146 | 145 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 0 ... ( 𝑁 − 1 ) ) ) → 𝑘 ∈ ℕ0 ) |
| 147 | ovex | ⊢ ( ( 𝑘 + 1 ) · ( 𝐴 ‘ ( 𝑘 + 1 ) ) ) ∈ V | |
| 148 | 4 | fvmpt2 | ⊢ ( ( 𝑘 ∈ ℕ0 ∧ ( ( 𝑘 + 1 ) · ( 𝐴 ‘ ( 𝑘 + 1 ) ) ) ∈ V ) → ( 𝐵 ‘ 𝑘 ) = ( ( 𝑘 + 1 ) · ( 𝐴 ‘ ( 𝑘 + 1 ) ) ) ) |
| 149 | 146 147 148 | sylancl | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 0 ... ( 𝑁 − 1 ) ) ) → ( 𝐵 ‘ 𝑘 ) = ( ( 𝑘 + 1 ) · ( 𝐴 ‘ ( 𝑘 + 1 ) ) ) ) |
| 150 | 149 | oveq1d | ⊢ ( ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) ∧ 𝑘 ∈ ( 0 ... ( 𝑁 − 1 ) ) ) → ( ( 𝐵 ‘ 𝑘 ) · ( 𝑧 ↑ 𝑘 ) ) = ( ( ( 𝑘 + 1 ) · ( 𝐴 ‘ ( 𝑘 + 1 ) ) ) · ( 𝑧 ↑ 𝑘 ) ) ) |
| 151 | 150 | sumeq2dv | ⊢ ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) → Σ 𝑘 ∈ ( 0 ... ( 𝑁 − 1 ) ) ( ( 𝐵 ‘ 𝑘 ) · ( 𝑧 ↑ 𝑘 ) ) = Σ 𝑘 ∈ ( 0 ... ( 𝑁 − 1 ) ) ( ( ( 𝑘 + 1 ) · ( 𝐴 ‘ ( 𝑘 + 1 ) ) ) · ( 𝑧 ↑ 𝑘 ) ) ) |
| 152 | 133 144 151 | 3eqtr4d | ⊢ ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) → Σ 𝑘 ∈ ( 1 ... 𝑁 ) ( ( 𝐴 ‘ 𝑘 ) · ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) = Σ 𝑘 ∈ ( 0 ... ( 𝑁 − 1 ) ) ( ( 𝐵 ‘ 𝑘 ) · ( 𝑧 ↑ 𝑘 ) ) ) |
| 153 | 59 101 152 | 3eqtr3d | ⊢ ( ( 𝜑 ∧ 𝑧 ∈ ℂ ) → Σ 𝑘 ∈ ( 0 ... 𝑁 ) ( ( 𝐴 ‘ 𝑘 ) · if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ) = Σ 𝑘 ∈ ( 0 ... ( 𝑁 − 1 ) ) ( ( 𝐵 ‘ 𝑘 ) · ( 𝑧 ↑ 𝑘 ) ) ) |
| 154 | 153 | mpteq2dva | ⊢ ( 𝜑 → ( 𝑧 ∈ ℂ ↦ Σ 𝑘 ∈ ( 0 ... 𝑁 ) ( ( 𝐴 ‘ 𝑘 ) · if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ) ) = ( 𝑧 ∈ ℂ ↦ Σ 𝑘 ∈ ( 0 ... ( 𝑁 − 1 ) ) ( ( 𝐵 ‘ 𝑘 ) · ( 𝑧 ↑ 𝑘 ) ) ) ) |
| 155 | 154 2 | eqtr4d | ⊢ ( 𝜑 → ( 𝑧 ∈ ℂ ↦ Σ 𝑘 ∈ ( 0 ... 𝑁 ) ( ( 𝐴 ‘ 𝑘 ) · if ( 𝑘 = 0 , 0 , ( 𝑘 · ( 𝑧 ↑ ( 𝑘 − 1 ) ) ) ) ) ) = 𝐺 ) |
| 156 | 6 52 155 | 3eqtrd | ⊢ ( 𝜑 → ( ℂ D 𝐹 ) = 𝐺 ) |