Theorem pserval 26450

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 7399	. . . 4 ⊢ (𝑦 = 𝑋 → (𝑦↑𝑚) = (𝑋↑𝑚))
2	1	oveq2d 7408	. . 3 ⊢ (𝑦 = 𝑋 → ((𝐴‘𝑚) · (𝑦↑𝑚)) = ((𝐴‘𝑚) · (𝑋↑𝑚)))
3	2	mpteq2dv 5193	. 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 6863	. . . . . . 7 ⊢ (𝑛 = 𝑚 → (𝐴‘𝑛) = (𝐴‘𝑚))
6		oveq2 7400	. . . . . . 7 ⊢ (𝑛 = 𝑚 → (𝑥↑𝑛) = (𝑥↑𝑚))
7	5, 6	oveq12d 7410	. . . . . 6 ⊢ (𝑛 = 𝑚 → ((𝐴‘𝑛) · (𝑥↑𝑛)) = ((𝐴‘𝑚) · (𝑥↑𝑚)))
8	7	cbvmptv 5203	. . . . 5 ⊢ (𝑛 ∈ ℕ0 ↦ ((𝐴‘𝑛) · (𝑥↑𝑛))) = (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑥↑𝑚)))
9		oveq1 7399	. . . . . . 7 ⊢ (𝑥 = 𝑦 → (𝑥↑𝑚) = (𝑦↑𝑚))
10	9	oveq2d 7408	. . . . . 6 ⊢ (𝑥 = 𝑦 → ((𝐴‘𝑚) · (𝑥↑𝑚)) = ((𝐴‘𝑚) · (𝑦↑𝑚)))
11	10	mpteq2dv 5193	. . . . 5 ⊢ (𝑥 = 𝑦 → (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑥↑𝑚))) = (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑦↑𝑚))))
12	8, 11	eqtrid 2808	. . . 4 ⊢ (𝑥 = 𝑦 → (𝑛 ∈ ℕ0 ↦ ((𝐴‘𝑛) · (𝑥↑𝑛))) = (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑦↑𝑚))))
13	12	cbvmptv 5203	. . 3 ⊢ (𝑥 ∈ ℂ ↦ (𝑛 ∈ ℕ0 ↦ ((𝐴‘𝑛) · (𝑥↑𝑛)))) = (𝑦 ∈ ℂ ↦ (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑦↑𝑚))))
14	4, 13	eqtri 2784	. 2 ⊢ 𝐺 = (𝑦 ∈ ℂ ↦ (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑦↑𝑚))))
15		nn0ex 12484	. . 3 ⊢ ℕ0 ∈ V
16	15	mptex 7203	. 2 ⊢ (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑋↑𝑚))) ∈ V
17	3, 14, 16	fvmpt 6971	1 ⊢ (𝑋 ∈ ℂ → (𝐺‘𝑋) = (𝑚 ∈ ℕ0 ↦ ((𝐴‘𝑚) · (𝑋↑𝑚))))

Syntax hints:   → wi 4   = wceq 1559   ∈ wcel 2141   ↦ cmpt 5180  ‘cfv 6517  (class class class)co 7392  ℂcc 11068   · cmul 11075  ℕ₀cn0 12478  ↑cexp 14071

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1814  ax-4 1828  ax-5 1929  ax-6 1986  ax-7 2027  ax-8 2143  ax-9 2151  ax-10 2174  ax-11 2190  ax-12 2211  ax-ext 2733  ax-rep 5226  ax-sep 5245  ax-nul 5255  ax-pr 5389  ax-un 7714  ax-cnex 11126  ax-1cn 11128  ax-addcl 11130

This theorem depends on definitions:  df-bi 209  df-an 400  df-or 859  df-3or 1098  df-3an 1099  df-tru 1562  df-fal 1572  df-ex 1799  df-nf 1803  df-sb 2090  df-mo 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-nfc 2910  df-ne 2957  df-ral 3076  df-rex 3086  df-reu 3367  df-rab 3414  df-v 3455  df-sbc 3745  df-csb 3853  df-dif 3907  df-un 3909  df-in 3911  df-ss 3921  df-pss 3924  df-nul 4286  df-if 4480  df-pw 4556  df-sn 4582  df-pr 4584  df-op 4588  df-uni 4865  df-iun 4950  df-br 5100  df-opab 5162  df-mpt 5181  df-tr 5207  df-id 5540  df-eprel 5545  df-po 5553  df-so 5554  df-fr 5598  df-we 5600  df-xp 5651  df-rel 5652  df-cnv 5653  df-co 5654  df-dm 5655  df-rn 5656  df-res 5657  df-ima 5658  df-pred 6284  df-ord 6345  df-on 6346  df-lim 6347  df-suc 6348  df-iota 6473  df-fun 6519  df-fn 6520  df-f 6521  df-f1 6522  df-fo 6523  df-f1o 6524  df-fv 6525  df-ov 7395  df-om 7843  df-2nd 7967  df-frecs 8257  df-wrecs 8288  df-recs 8337  df-rdg 8376  df-nn 12208  df-n0 12479

This theorem is referenced by:  pserval2  26451  psergf  26452