Theorem psdval 22012

Description: Evaluate the partial derivative of a power series. (Contributed by SN, 11-Apr-2025.)

Hypotheses

Ref	Expression
psdffval.s	⊢ 𝑆 = (𝐼 mPwSer 𝑅)
psdffval.b	⊢ 𝐵 = (Base‘𝑆)
psdffval.d	⊢ 𝐷 = {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin}
psdffval.i	⊢ (𝜑 → 𝐼 ∈ 𝑉)
psdffval.r	⊢ (𝜑 → 𝑅 ∈ 𝑊)
psdfval.x	⊢ (𝜑 → 𝑋 ∈ 𝐼)
psdval.f	⊢ (𝜑 → 𝐹 ∈ 𝐵)

Assertion

Ref	Expression
psdval	⊢ (𝜑 → (((𝐼 mPSDer 𝑅)‘𝑋)‘𝐹) = (𝑘 ∈ 𝐷 ↦ (((𝑘‘𝑋) + 1)(.g‘𝑅)(𝐹‘(𝑘 ∘f + (𝑦 ∈ 𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))))

Distinct variable groups:   ℎ,𝐼,𝑘,𝑦   𝑅,𝑘   𝑘,𝑋,𝑦   𝑘,𝐹   𝐷,𝑘

Allowed substitution hints:   𝜑(𝑦,ℎ,𝑘)   𝐵(𝑦,ℎ,𝑘)   𝐷(𝑦,ℎ)   𝑅(𝑦,ℎ)   𝑆(𝑦,ℎ,𝑘)   𝐹(𝑦,ℎ)   𝑉(𝑦,ℎ,𝑘)   𝑊(𝑦,ℎ,𝑘)   𝑋(ℎ)

Proof of Theorem psdval

Dummy variable 𝑓 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		psdffval.s	. . 3 ⊢ 𝑆 = (𝐼 mPwSer 𝑅)
2		psdffval.b	. . 3 ⊢ 𝐵 = (Base‘𝑆)
3		psdffval.d	. . 3 ⊢ 𝐷 = {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin}
4		psdffval.i	. . 3 ⊢ (𝜑 → 𝐼 ∈ 𝑉)
5		psdffval.r	. . 3 ⊢ (𝜑 → 𝑅 ∈ 𝑊)
6		psdfval.x	. . 3 ⊢ (𝜑 → 𝑋 ∈ 𝐼)
7	1, 2, 3, 4, 5, 6	psdfval 22011	. 2 ⊢ (𝜑 → ((𝐼 mPSDer 𝑅)‘𝑋) = (𝑓 ∈ 𝐵 ↦ (𝑘 ∈ 𝐷 ↦ (((𝑘‘𝑋) + 1)(.g‘𝑅)(𝑓‘(𝑘 ∘f + (𝑦 ∈ 𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))))))
8		fveq1 6881	. . . . 5 ⊢ (𝑓 = 𝐹 → (𝑓‘(𝑘 ∘f + (𝑦 ∈ 𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))) = (𝐹‘(𝑘 ∘f + (𝑦 ∈ 𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))
9	8	oveq2d 7418	. . . 4 ⊢ (𝑓 = 𝐹 → (((𝑘‘𝑋) + 1)(.g‘𝑅)(𝑓‘(𝑘 ∘f + (𝑦 ∈ 𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))) = (((𝑘‘𝑋) + 1)(.g‘𝑅)(𝐹‘(𝑘 ∘f + (𝑦 ∈ 𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))))
10	9	mpteq2dv 5241	. . 3 ⊢ (𝑓 = 𝐹 → (𝑘 ∈ 𝐷 ↦ (((𝑘‘𝑋) + 1)(.g‘𝑅)(𝑓‘(𝑘 ∘f + (𝑦 ∈ 𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))) = (𝑘 ∈ 𝐷 ↦ (((𝑘‘𝑋) + 1)(.g‘𝑅)(𝐹‘(𝑘 ∘f + (𝑦 ∈ 𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))))
11	10	adantl 481	. 2 ⊢ ((𝜑 ∧ 𝑓 = 𝐹) → (𝑘 ∈ 𝐷 ↦ (((𝑘‘𝑋) + 1)(.g‘𝑅)(𝑓‘(𝑘 ∘f + (𝑦 ∈ 𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))) = (𝑘 ∈ 𝐷 ↦ (((𝑘‘𝑋) + 1)(.g‘𝑅)(𝐹‘(𝑘 ∘f + (𝑦 ∈ 𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))))
12		psdval.f	. 2 ⊢ (𝜑 → 𝐹 ∈ 𝐵)
13		ovex 7435	. . . . 5 ⊢ (ℕ0 ↑m 𝐼) ∈ V
14	3, 13	rabex2 5325	. . . 4 ⊢ 𝐷 ∈ V
15	14	a1i 11	. . 3 ⊢ (𝜑 → 𝐷 ∈ V)
16	15	mptexd 7218	. 2 ⊢ (𝜑 → (𝑘 ∈ 𝐷 ↦ (((𝑘‘𝑋) + 1)(.g‘𝑅)(𝐹‘(𝑘 ∘f + (𝑦 ∈ 𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))) ∈ V)
17	7, 11, 12, 16	fvmptd 6996	1 ⊢ (𝜑 → (((𝐼 mPSDer 𝑅)‘𝑋)‘𝐹) = (𝑘 ∈ 𝐷 ↦ (((𝑘‘𝑋) + 1)(.g‘𝑅)(𝐹‘(𝑘 ∘f + (𝑦 ∈ 𝐼 ↦ if(𝑦 = 𝑋, 1, 0)))))))

Syntax hints:   → wi 4   = wceq 1533   ∈ wcel 2098  {crab 3424  Vcvv 3466  ifcif 4521   ↦ cmpt 5222  ^◡ccnv 5666   “ cima 5670  ‘cfv 6534  (class class class)co 7402   ∘_f cof 7662   ↑_m cmap 8817  Fincfn 8936  0cc0 11107  1c1 11108   + caddc 11110  ℕcn 12210  ℕ₀cn0 12470  Basecbs 17145  ._gcmg 18987   mPwSer cmps 21768   mPSDer cpsd 21985

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1789  ax-4 1803  ax-5 1905  ax-6 1963  ax-7 2003  ax-8 2100  ax-9 2108  ax-10 2129  ax-11 2146  ax-12 2163  ax-ext 2695  ax-rep 5276  ax-sep 5290  ax-nul 5297  ax-pr 5418

This theorem depends on definitions:  df-bi 206  df-an 396  df-or 845  df-3an 1086  df-tru 1536  df-fal 1546  df-ex 1774  df-nf 1778  df-sb 2060  df-mo 2526  df-eu 2555  df-clab 2702  df-cleq 2716  df-clel 2802  df-nfc 2877  df-ne 2933  df-ral 3054  df-rex 3063  df-reu 3369  df-rab 3425  df-v 3468  df-sbc 3771  df-csb 3887  df-dif 3944  df-un 3946  df-in 3948  df-ss 3958  df-nul 4316  df-if 4522  df-sn 4622  df-pr 4624  df-op 4628  df-uni 4901  df-iun 4990  df-br 5140  df-opab 5202  df-mpt 5223  df-id 5565  df-xp 5673  df-rel 5674  df-cnv 5675  df-co 5676  df-dm 5677  df-rn 5678  df-res 5679  df-ima 5680  df-iota 6486  df-fun 6536  df-fn 6537  df-f 6538  df-f1 6539  df-fo 6540  df-f1o 6541  df-fv 6542  df-ov 7405  df-oprab 7406  df-mpo 7407  df-psd 22009

This theorem is referenced by:  psdcoef  22013  psdcl  22014  psdmplcl  22015  psdadd  22016