| Step | Hyp | Ref
 | Expression | 
| 1 |   | cjcl 11013 | 
. . 3
⊢ (𝐴 ∈ ℂ →
(∗‘𝐴) ∈
ℂ) | 
| 2 |   | eqid 2196 | 
. . . 4
⊢ (𝑛 ∈ ℕ0
↦ (((∗‘𝐴)↑𝑛) / (!‘𝑛))) = (𝑛 ∈ ℕ0 ↦
(((∗‘𝐴)↑𝑛) / (!‘𝑛))) | 
| 3 | 2 | efcvg 11831 | 
. . 3
⊢
((∗‘𝐴)
∈ ℂ → seq0( + , (𝑛 ∈ ℕ0 ↦
(((∗‘𝐴)↑𝑛) / (!‘𝑛)))) ⇝ (exp‘(∗‘𝐴))) | 
| 4 | 1, 3 | syl 14 | 
. 2
⊢ (𝐴 ∈ ℂ → seq0( + ,
(𝑛 ∈
ℕ0 ↦ (((∗‘𝐴)↑𝑛) / (!‘𝑛)))) ⇝ (exp‘(∗‘𝐴))) | 
| 5 |   | nn0uz 9636 | 
. . 3
⊢
ℕ0 = (ℤ≥‘0) | 
| 6 |   | eqid 2196 | 
. . . 4
⊢ (𝑛 ∈ ℕ0
↦ ((𝐴↑𝑛) / (!‘𝑛))) = (𝑛 ∈ ℕ0 ↦ ((𝐴↑𝑛) / (!‘𝑛))) | 
| 7 | 6 | efcvg 11831 | 
. . 3
⊢ (𝐴 ∈ ℂ → seq0( + ,
(𝑛 ∈
ℕ0 ↦ ((𝐴↑𝑛) / (!‘𝑛)))) ⇝ (exp‘𝐴)) | 
| 8 |   | seqex 10541 | 
. . . 4
⊢ seq0( + ,
(𝑛 ∈
ℕ0 ↦ (((∗‘𝐴)↑𝑛) / (!‘𝑛)))) ∈ V | 
| 9 | 8 | a1i 9 | 
. . 3
⊢ (𝐴 ∈ ℂ → seq0( + ,
(𝑛 ∈
ℕ0 ↦ (((∗‘𝐴)↑𝑛) / (!‘𝑛)))) ∈ V) | 
| 10 |   | 0zd 9338 | 
. . 3
⊢ (𝐴 ∈ ℂ → 0 ∈
ℤ) | 
| 11 | 6 | eftvalcn 11822 | 
. . . . . 6
⊢ ((𝐴 ∈ ℂ ∧ 𝑘 ∈ ℕ0)
→ ((𝑛 ∈
ℕ0 ↦ ((𝐴↑𝑛) / (!‘𝑛)))‘𝑘) = ((𝐴↑𝑘) / (!‘𝑘))) | 
| 12 |   | eftcl 11819 | 
. . . . . 6
⊢ ((𝐴 ∈ ℂ ∧ 𝑘 ∈ ℕ0)
→ ((𝐴↑𝑘) / (!‘𝑘)) ∈ ℂ) | 
| 13 | 11, 12 | eqeltrd 2273 | 
. . . . 5
⊢ ((𝐴 ∈ ℂ ∧ 𝑘 ∈ ℕ0)
→ ((𝑛 ∈
ℕ0 ↦ ((𝐴↑𝑛) / (!‘𝑛)))‘𝑘) ∈ ℂ) | 
| 14 | 5, 10, 13 | serf 10575 | 
. . . 4
⊢ (𝐴 ∈ ℂ → seq0( + ,
(𝑛 ∈
ℕ0 ↦ ((𝐴↑𝑛) / (!‘𝑛)))):ℕ0⟶ℂ) | 
| 15 | 14 | ffvelcdmda 5697 | 
. . 3
⊢ ((𝐴 ∈ ℂ ∧ 𝑗 ∈ ℕ0)
→ (seq0( + , (𝑛 ∈
ℕ0 ↦ ((𝐴↑𝑛) / (!‘𝑛))))‘𝑗) ∈ ℂ) | 
| 16 |   | addcl 8004 | 
. . . . . 6
⊢ ((𝑘 ∈ ℂ ∧ 𝑚 ∈ ℂ) → (𝑘 + 𝑚) ∈ ℂ) | 
| 17 | 16 | adantl 277 | 
. . . . 5
⊢ (((𝐴 ∈ ℂ ∧ 𝑗 ∈ ℕ0)
∧ (𝑘 ∈ ℂ
∧ 𝑚 ∈ ℂ))
→ (𝑘 + 𝑚) ∈
ℂ) | 
| 18 |   | simpl 109 | 
. . . . . 6
⊢ ((𝐴 ∈ ℂ ∧ 𝑗 ∈ ℕ0)
→ 𝐴 ∈
ℂ) | 
| 19 |   | elnn0uz 9639 | 
. . . . . . 7
⊢ (𝑘 ∈ ℕ0
↔ 𝑘 ∈
(ℤ≥‘0)) | 
| 20 | 19 | biimpri 133 | 
. . . . . 6
⊢ (𝑘 ∈
(ℤ≥‘0) → 𝑘 ∈ ℕ0) | 
| 21 | 18, 20, 13 | syl2an 289 | 
. . . . 5
⊢ (((𝐴 ∈ ℂ ∧ 𝑗 ∈ ℕ0)
∧ 𝑘 ∈
(ℤ≥‘0)) → ((𝑛 ∈ ℕ0 ↦ ((𝐴↑𝑛) / (!‘𝑛)))‘𝑘) ∈ ℂ) | 
| 22 |   | simpr 110 | 
. . . . . 6
⊢ ((𝐴 ∈ ℂ ∧ 𝑗 ∈ ℕ0)
→ 𝑗 ∈
ℕ0) | 
| 23 | 22, 5 | eleqtrdi 2289 | 
. . . . 5
⊢ ((𝐴 ∈ ℂ ∧ 𝑗 ∈ ℕ0)
→ 𝑗 ∈
(ℤ≥‘0)) | 
| 24 |   | cjadd 11049 | 
. . . . . 6
⊢ ((𝑘 ∈ ℂ ∧ 𝑚 ∈ ℂ) →
(∗‘(𝑘 + 𝑚)) = ((∗‘𝑘) + (∗‘𝑚))) | 
| 25 | 24 | adantl 277 | 
. . . . 5
⊢ (((𝐴 ∈ ℂ ∧ 𝑗 ∈ ℕ0)
∧ (𝑘 ∈ ℂ
∧ 𝑚 ∈ ℂ))
→ (∗‘(𝑘 +
𝑚)) =
((∗‘𝑘) +
(∗‘𝑚))) | 
| 26 |   | expcl 10649 | 
. . . . . . . . 9
⊢ ((𝐴 ∈ ℂ ∧ 𝑘 ∈ ℕ0)
→ (𝐴↑𝑘) ∈
ℂ) | 
| 27 |   | faccl 10827 | 
. . . . . . . . . . 11
⊢ (𝑘 ∈ ℕ0
→ (!‘𝑘) ∈
ℕ) | 
| 28 | 27 | adantl 277 | 
. . . . . . . . . 10
⊢ ((𝐴 ∈ ℂ ∧ 𝑘 ∈ ℕ0)
→ (!‘𝑘) ∈
ℕ) | 
| 29 | 28 | nncnd 9004 | 
. . . . . . . . 9
⊢ ((𝐴 ∈ ℂ ∧ 𝑘 ∈ ℕ0)
→ (!‘𝑘) ∈
ℂ) | 
| 30 | 28 | nnap0d 9036 | 
. . . . . . . . 9
⊢ ((𝐴 ∈ ℂ ∧ 𝑘 ∈ ℕ0)
→ (!‘𝑘) #
0) | 
| 31 | 26, 29, 30 | cjdivapd 11133 | 
. . . . . . . 8
⊢ ((𝐴 ∈ ℂ ∧ 𝑘 ∈ ℕ0)
→ (∗‘((𝐴↑𝑘) / (!‘𝑘))) = ((∗‘(𝐴↑𝑘)) / (∗‘(!‘𝑘)))) | 
| 32 |   | cjexp 11058 | 
. . . . . . . . 9
⊢ ((𝐴 ∈ ℂ ∧ 𝑘 ∈ ℕ0)
→ (∗‘(𝐴↑𝑘)) = ((∗‘𝐴)↑𝑘)) | 
| 33 | 28 | nnred 9003 | 
. . . . . . . . . 10
⊢ ((𝐴 ∈ ℂ ∧ 𝑘 ∈ ℕ0)
→ (!‘𝑘) ∈
ℝ) | 
| 34 | 33 | cjred 11136 | 
. . . . . . . . 9
⊢ ((𝐴 ∈ ℂ ∧ 𝑘 ∈ ℕ0)
→ (∗‘(!‘𝑘)) = (!‘𝑘)) | 
| 35 | 32, 34 | oveq12d 5940 | 
. . . . . . . 8
⊢ ((𝐴 ∈ ℂ ∧ 𝑘 ∈ ℕ0)
→ ((∗‘(𝐴↑𝑘)) / (∗‘(!‘𝑘))) = (((∗‘𝐴)↑𝑘) / (!‘𝑘))) | 
| 36 | 31, 35 | eqtrd 2229 | 
. . . . . . 7
⊢ ((𝐴 ∈ ℂ ∧ 𝑘 ∈ ℕ0)
→ (∗‘((𝐴↑𝑘) / (!‘𝑘))) = (((∗‘𝐴)↑𝑘) / (!‘𝑘))) | 
| 37 | 11 | fveq2d 5562 | 
. . . . . . 7
⊢ ((𝐴 ∈ ℂ ∧ 𝑘 ∈ ℕ0)
→ (∗‘((𝑛
∈ ℕ0 ↦ ((𝐴↑𝑛) / (!‘𝑛)))‘𝑘)) = (∗‘((𝐴↑𝑘) / (!‘𝑘)))) | 
| 38 | 2 | eftvalcn 11822 | 
. . . . . . . 8
⊢
(((∗‘𝐴)
∈ ℂ ∧ 𝑘
∈ ℕ0) → ((𝑛 ∈ ℕ0 ↦
(((∗‘𝐴)↑𝑛) / (!‘𝑛)))‘𝑘) = (((∗‘𝐴)↑𝑘) / (!‘𝑘))) | 
| 39 | 1, 38 | sylan 283 | 
. . . . . . 7
⊢ ((𝐴 ∈ ℂ ∧ 𝑘 ∈ ℕ0)
→ ((𝑛 ∈
ℕ0 ↦ (((∗‘𝐴)↑𝑛) / (!‘𝑛)))‘𝑘) = (((∗‘𝐴)↑𝑘) / (!‘𝑘))) | 
| 40 | 36, 37, 39 | 3eqtr4d 2239 | 
. . . . . 6
⊢ ((𝐴 ∈ ℂ ∧ 𝑘 ∈ ℕ0)
→ (∗‘((𝑛
∈ ℕ0 ↦ ((𝐴↑𝑛) / (!‘𝑛)))‘𝑘)) = ((𝑛 ∈ ℕ0 ↦
(((∗‘𝐴)↑𝑛) / (!‘𝑛)))‘𝑘)) | 
| 41 | 18, 20, 40 | syl2an 289 | 
. . . . 5
⊢ (((𝐴 ∈ ℂ ∧ 𝑗 ∈ ℕ0)
∧ 𝑘 ∈
(ℤ≥‘0)) → (∗‘((𝑛 ∈ ℕ0 ↦ ((𝐴↑𝑛) / (!‘𝑛)))‘𝑘)) = ((𝑛 ∈ ℕ0 ↦
(((∗‘𝐴)↑𝑛) / (!‘𝑛)))‘𝑘)) | 
| 42 | 20 | adantl 277 | 
. . . . . . 7
⊢ (((𝐴 ∈ ℂ ∧ 𝑗 ∈ ℕ0)
∧ 𝑘 ∈
(ℤ≥‘0)) → 𝑘 ∈ ℕ0) | 
| 43 | 1 | ad2antrr 488 | 
. . . . . . . . 9
⊢ (((𝐴 ∈ ℂ ∧ 𝑗 ∈ ℕ0)
∧ 𝑘 ∈
(ℤ≥‘0)) → (∗‘𝐴) ∈ ℂ) | 
| 44 | 43, 42 | expcld 10765 | 
. . . . . . . 8
⊢ (((𝐴 ∈ ℂ ∧ 𝑗 ∈ ℕ0)
∧ 𝑘 ∈
(ℤ≥‘0)) → ((∗‘𝐴)↑𝑘) ∈ ℂ) | 
| 45 | 18, 20, 29 | syl2an 289 | 
. . . . . . . 8
⊢ (((𝐴 ∈ ℂ ∧ 𝑗 ∈ ℕ0)
∧ 𝑘 ∈
(ℤ≥‘0)) → (!‘𝑘) ∈ ℂ) | 
| 46 | 18, 20, 30 | syl2an 289 | 
. . . . . . . 8
⊢ (((𝐴 ∈ ℂ ∧ 𝑗 ∈ ℕ0)
∧ 𝑘 ∈
(ℤ≥‘0)) → (!‘𝑘) # 0) | 
| 47 | 44, 45, 46 | divclapd 8817 | 
. . . . . . 7
⊢ (((𝐴 ∈ ℂ ∧ 𝑗 ∈ ℕ0)
∧ 𝑘 ∈
(ℤ≥‘0)) → (((∗‘𝐴)↑𝑘) / (!‘𝑘)) ∈ ℂ) | 
| 48 |   | oveq2 5930 | 
. . . . . . . . 9
⊢ (𝑛 = 𝑘 → ((∗‘𝐴)↑𝑛) = ((∗‘𝐴)↑𝑘)) | 
| 49 |   | fveq2 5558 | 
. . . . . . . . 9
⊢ (𝑛 = 𝑘 → (!‘𝑛) = (!‘𝑘)) | 
| 50 | 48, 49 | oveq12d 5940 | 
. . . . . . . 8
⊢ (𝑛 = 𝑘 → (((∗‘𝐴)↑𝑛) / (!‘𝑛)) = (((∗‘𝐴)↑𝑘) / (!‘𝑘))) | 
| 51 | 50, 2 | fvmptg 5637 | 
. . . . . . 7
⊢ ((𝑘 ∈ ℕ0
∧ (((∗‘𝐴)↑𝑘) / (!‘𝑘)) ∈ ℂ) → ((𝑛 ∈ ℕ0
↦ (((∗‘𝐴)↑𝑛) / (!‘𝑛)))‘𝑘) = (((∗‘𝐴)↑𝑘) / (!‘𝑘))) | 
| 52 | 42, 47, 51 | syl2anc 411 | 
. . . . . 6
⊢ (((𝐴 ∈ ℂ ∧ 𝑗 ∈ ℕ0)
∧ 𝑘 ∈
(ℤ≥‘0)) → ((𝑛 ∈ ℕ0 ↦
(((∗‘𝐴)↑𝑛) / (!‘𝑛)))‘𝑘) = (((∗‘𝐴)↑𝑘) / (!‘𝑘))) | 
| 53 | 52, 47 | eqeltrd 2273 | 
. . . . 5
⊢ (((𝐴 ∈ ℂ ∧ 𝑗 ∈ ℕ0)
∧ 𝑘 ∈
(ℤ≥‘0)) → ((𝑛 ∈ ℕ0 ↦
(((∗‘𝐴)↑𝑛) / (!‘𝑛)))‘𝑘) ∈ ℂ) | 
| 54 | 17, 21, 23, 25, 41, 53, 17 | seq3homo 10619 | 
. . . 4
⊢ ((𝐴 ∈ ℂ ∧ 𝑗 ∈ ℕ0)
→ (∗‘(seq0( + , (𝑛 ∈ ℕ0 ↦ ((𝐴↑𝑛) / (!‘𝑛))))‘𝑗)) = (seq0( + , (𝑛 ∈ ℕ0 ↦
(((∗‘𝐴)↑𝑛) / (!‘𝑛))))‘𝑗)) | 
| 55 | 54 | eqcomd 2202 | 
. . 3
⊢ ((𝐴 ∈ ℂ ∧ 𝑗 ∈ ℕ0)
→ (seq0( + , (𝑛 ∈
ℕ0 ↦ (((∗‘𝐴)↑𝑛) / (!‘𝑛))))‘𝑗) = (∗‘(seq0( + , (𝑛 ∈ ℕ0
↦ ((𝐴↑𝑛) / (!‘𝑛))))‘𝑗))) | 
| 56 | 5, 7, 9, 10, 15, 55 | climcj 11486 | 
. 2
⊢ (𝐴 ∈ ℂ → seq0( + ,
(𝑛 ∈
ℕ0 ↦ (((∗‘𝐴)↑𝑛) / (!‘𝑛)))) ⇝ (∗‘(exp‘𝐴))) | 
| 57 |   | climuni 11458 | 
. 2
⊢ ((seq0( +
, (𝑛 ∈
ℕ0 ↦ (((∗‘𝐴)↑𝑛) / (!‘𝑛)))) ⇝ (exp‘(∗‘𝐴)) ∧ seq0( + , (𝑛 ∈ ℕ0
↦ (((∗‘𝐴)↑𝑛) / (!‘𝑛)))) ⇝ (∗‘(exp‘𝐴))) →
(exp‘(∗‘𝐴)) = (∗‘(exp‘𝐴))) | 
| 58 | 4, 56, 57 | syl2anc 411 | 
1
⊢ (𝐴 ∈ ℂ →
(exp‘(∗‘𝐴)) = (∗‘(exp‘𝐴))) |