Theorem pserval 26375

Description: Value of the function 𝐺 that gives the sequence of monomials of a power series. (Contributed by Mario Carneiro, 26-Feb-2015.)

Hypothesis

Ref	Expression
pser.g	⊢ 𝐺 = (𝑥 ∈ ℂ ↦ (𝑛 ∈ ℕ0 ↦ ((𝐴‘𝑛) · (𝑥↑𝑛))))

Assertion

Ref	Expression
pserval	⊢ (𝑋 ∈ ℂ → (𝐺‘𝑋) = (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑋↑𝑚))))

Distinct variable groups:   𝑚,𝑛,𝑥,𝐴   𝑚,𝑋   𝑚,𝐺

Allowed substitution hints:   𝐺(𝑥,𝑛)   𝑋(𝑥,𝑛)

Proof of Theorem pserval

Dummy variable 𝑦 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		oveq1 7374	. . . 4 ⊢ (𝑦 = 𝑋 → (𝑦↑𝑚) = (𝑋↑𝑚))
2	1	oveq2d 7383	. . 3 ⊢ (𝑦 = 𝑋 → ((𝐴‘𝑚) · (𝑦↑𝑚)) = ((𝐴‘𝑚) · (𝑋↑𝑚)))
3	2	mpteq2dv 5179	. 2 ⊢ (𝑦 = 𝑋 → (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑦↑𝑚))) = (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑋↑𝑚))))
4		pser.g	. . 3 ⊢ 𝐺 = (𝑥 ∈ ℂ ↦ (𝑛 ∈ ℕ0 ↦ ((𝐴‘𝑛) · (𝑥↑𝑛))))
5		fveq2 6840	. . . . . . 7 ⊢ (𝑛 = 𝑚 → (𝐴‘𝑛) = (𝐴‘𝑚))
6		oveq2 7375	. . . . . . 7 ⊢ (𝑛 = 𝑚 → (𝑥↑𝑛) = (𝑥↑𝑚))
7	5, 6	oveq12d 7385	. . . . . 6 ⊢ (𝑛 = 𝑚 → ((𝐴‘𝑛) · (𝑥↑𝑛)) = ((𝐴‘𝑚) · (𝑥↑𝑚)))
8	7	cbvmptv 5189	. . . . 5 ⊢ (𝑛 ∈ ℕ0 ↦ ((𝐴‘𝑛) · (𝑥↑𝑛))) = (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑥↑𝑚)))
9		oveq1 7374	. . . . . . 7 ⊢ (𝑥 = 𝑦 → (𝑥↑𝑚) = (𝑦↑𝑚))
10	9	oveq2d 7383	. . . . . 6 ⊢ (𝑥 = 𝑦 → ((𝐴‘𝑚) · (𝑥↑𝑚)) = ((𝐴‘𝑚) · (𝑦↑𝑚)))
11	10	mpteq2dv 5179	. . . . 5 ⊢ (𝑥 = 𝑦 → (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑥↑𝑚))) = (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑦↑𝑚))))
12	8, 11	eqtrid 2783	. . . 4 ⊢ (𝑥 = 𝑦 → (𝑛 ∈ ℕ0 ↦ ((𝐴‘𝑛) · (𝑥↑𝑛))) = (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑦↑𝑚))))
13	12	cbvmptv 5189	. . 3 ⊢ (𝑥 ∈ ℂ ↦ (𝑛 ∈ ℕ0 ↦ ((𝐴‘𝑛) · (𝑥↑𝑛)))) = (𝑦 ∈ ℂ ↦ (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑦↑𝑚))))
14	4, 13	eqtri 2759	. 2 ⊢ 𝐺 = (𝑦 ∈ ℂ ↦ (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑦↑𝑚))))
15		nn0ex 12443	. . 3 ⊢ ℕ0 ∈ V
16	15	mptex 7178	. 2 ⊢ (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑋↑𝑚))) ∈ V
17	3, 14, 16	fvmpt 6947	1 ⊢ (𝑋 ∈ ℂ → (𝐺‘𝑋) = (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑋↑𝑚))))

Syntax hints:   → wi 4   = wceq 1542   ∈ wcel 2114   ↦ cmpt 5166  ‘cfv 6498  (class class class)co 7367  ℂcc 11036   · cmul 11043  ℕ₀cn0 12437  ↑cexp 14023

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2708  ax-rep 5212  ax-sep 5231  ax-nul 5241  ax-pr 5375  ax-un 7689  ax-cnex 11094  ax-1cn 11096  ax-addcl 11098

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3or 1088  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2539  df-eu 2569  df-clab 2715  df-cleq 2728  df-clel 2811  df-nfc 2885  df-ne 2933  df-ral 3052  df-rex 3062  df-reu 3343  df-rab 3390  df-v 3431  df-sbc 3729  df-csb 3838  df-dif 3892  df-un 3894  df-in 3896  df-ss 3906  df-pss 3909  df-nul 4274  df-if 4467  df-pw 4543  df-sn 4568  df-pr 4570  df-op 4574  df-uni 4851  df-iun 4935  df-br 5086  df-opab 5148  df-mpt 5167  df-tr 5193  df-id 5526  df-eprel 5531  df-po 5539  df-so 5540  df-fr 5584  df-we 5586  df-xp 5637  df-rel 5638  df-cnv 5639  df-co 5640  df-dm 5641  df-rn 5642  df-res 5643  df-ima 5644  df-pred 6265  df-ord 6326  df-on 6327  df-lim 6328  df-suc 6329  df-iota 6454  df-fun 6500  df-fn 6501  df-f 6502  df-f1 6503  df-fo 6504  df-f1o 6505  df-fv 6506  df-ov 7370  df-om 7818  df-2nd 7943  df-frecs 8231  df-wrecs 8262  df-recs 8311  df-rdg 8349  df-nn 12175  df-n0 12438

This theorem is referenced by:  pserval2  26376  psergf  26377