Theorem pserval 25000

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 7165	. . . 4 ⊢ (𝑦 = 𝑋 → (𝑦↑𝑚) = (𝑋↑𝑚))
2	1	oveq2d 7174	. . 3 ⊢ (𝑦 = 𝑋 → ((𝐴‘𝑚) · (𝑦↑𝑚)) = ((𝐴‘𝑚) · (𝑋↑𝑚)))
3	2	mpteq2dv 5164	. 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 6672	. . . . . . 7 ⊢ (𝑛 = 𝑚 → (𝐴‘𝑛) = (𝐴‘𝑚))
6		oveq2 7166	. . . . . . 7 ⊢ (𝑛 = 𝑚 → (𝑥↑𝑛) = (𝑥↑𝑚))
7	5, 6	oveq12d 7176	. . . . . 6 ⊢ (𝑛 = 𝑚 → ((𝐴‘𝑛) · (𝑥↑𝑛)) = ((𝐴‘𝑚) · (𝑥↑𝑚)))
8	7	cbvmptv 5171	. . . . 5 ⊢ (𝑛 ∈ ℕ0 ↦ ((𝐴‘𝑛) · (𝑥↑𝑛))) = (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑥↑𝑚)))
9		oveq1 7165	. . . . . . 7 ⊢ (𝑥 = 𝑦 → (𝑥↑𝑚) = (𝑦↑𝑚))
10	9	oveq2d 7174	. . . . . 6 ⊢ (𝑥 = 𝑦 → ((𝐴‘𝑚) · (𝑥↑𝑚)) = ((𝐴‘𝑚) · (𝑦↑𝑚)))
11	10	mpteq2dv 5164	. . . . 5 ⊢ (𝑥 = 𝑦 → (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑥↑𝑚))) = (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑦↑𝑚))))
12	8, 11	syl5eq 2870	. . . 4 ⊢ (𝑥 = 𝑦 → (𝑛 ∈ ℕ0 ↦ ((𝐴‘𝑛) · (𝑥↑𝑛))) = (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑦↑𝑚))))
13	12	cbvmptv 5171	. . 3 ⊢ (𝑥 ∈ ℂ ↦ (𝑛 ∈ ℕ0 ↦ ((𝐴‘𝑛) · (𝑥↑𝑛)))) = (𝑦 ∈ ℂ ↦ (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑦↑𝑚))))
14	4, 13	eqtri 2846	. 2 ⊢ 𝐺 = (𝑦 ∈ ℂ ↦ (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑦↑𝑚))))
15		nn0ex 11906	. . 3 ⊢ ℕ0 ∈ V
16	15	mptex 6988	. 2 ⊢ (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑋↑𝑚))) ∈ V
17	3, 14, 16	fvmpt 6770	1 ⊢ (𝑋 ∈ ℂ → (𝐺‘𝑋) = (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑋↑𝑚))))

Syntax hints:   → wi 4   = wceq 1537   ∈ wcel 2114   ↦ cmpt 5148  ‘cfv 6357  (class class class)co 7158  ℂcc 10537   · cmul 10544  ℕ₀cn0 11900  ↑cexp 13432

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2116  ax-9 2124  ax-10 2145  ax-11 2161  ax-12 2177  ax-ext 2795  ax-rep 5192  ax-sep 5205  ax-nul 5212  ax-pow 5268  ax-pr 5332  ax-un 7463  ax-cnex 10595  ax-1cn 10597  ax-addcl 10599

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3or 1084  df-3an 1085  df-tru 1540  df-ex 1781  df-nf 1785  df-sb 2070  df-mo 2622  df-eu 2654  df-clab 2802  df-cleq 2816  df-clel 2895  df-nfc 2965  df-ne 3019  df-ral 3145  df-rex 3146  df-reu 3147  df-rab 3149  df-v 3498  df-sbc 3775  df-csb 3886  df-dif 3941  df-un 3943  df-in 3945  df-ss 3954  df-pss 3956  df-nul 4294  df-if 4470  df-pw 4543  df-sn 4570  df-pr 4572  df-tp 4574  df-op 4576  df-uni 4841  df-iun 4923  df-br 5069  df-opab 5131  df-mpt 5149  df-tr 5175  df-id 5462  df-eprel 5467  df-po 5476  df-so 5477  df-fr 5516  df-we 5518  df-xp 5563  df-rel 5564  df-cnv 5565  df-co 5566  df-dm 5567  df-rn 5568  df-res 5569  df-ima 5570  df-pred 6150  df-ord 6196  df-on 6197  df-lim 6198  df-suc 6199  df-iota 6316  df-fun 6359  df-fn 6360  df-f 6361  df-f1 6362  df-fo 6363  df-f1o 6364  df-fv 6365  df-ov 7161  df-om 7583  df-wrecs 7949  df-recs 8010  df-rdg 8048  df-nn 11641  df-n0 11901

This theorem is referenced by:  pserval2  25001  psergf  25002