Theorem etransclem13 40464

Description: 𝐹 applied to 𝑌. (Contributed by Glauco Siliprandi, 5-Apr-2020.)

Hypotheses

Ref	Expression
etransclem13.x	⊢ (𝜑 → 𝑋 ⊆ ℂ)
etransclem13.p	⊢ (𝜑 → 𝑃 ∈ ℕ)
etransclem13.m	⊢ (𝜑 → 𝑀 ∈ ℕ0)
etransclem13.f	⊢ 𝐹 = (𝑥 ∈ 𝑋 ↦ ((𝑥↑(𝑃 − 1)) · ∏𝑗 ∈ (1...𝑀)((𝑥 − 𝑗)↑𝑃)))
etransclem13.y	⊢ (𝜑 → 𝑌 ∈ 𝑋)

Assertion

Ref	Expression
etransclem13	⊢ (𝜑 → (𝐹‘𝑌) = ∏𝑗 ∈ (0...𝑀)((𝑌 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)))

Distinct variable groups:   𝑗,𝑀,𝑥   𝑃,𝑗,𝑥   𝑗,𝑋,𝑥   𝑗,𝑌,𝑥   𝜑,𝑗,𝑥

Allowed substitution hints:   𝐹(𝑥,𝑗)

Proof of Theorem etransclem13

Dummy variable 𝑦 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		etransclem13.x	. . 3 ⊢ (𝜑 → 𝑋 ⊆ ℂ)
2		etransclem13.p	. . 3 ⊢ (𝜑 → 𝑃 ∈ ℕ)
3		etransclem13.m	. . 3 ⊢ (𝜑 → 𝑀 ∈ ℕ0)
4		etransclem13.f	. . 3 ⊢ 𝐹 = (𝑥 ∈ 𝑋 ↦ ((𝑥↑(𝑃 − 1)) · ∏𝑗 ∈ (1...𝑀)((𝑥 − 𝑗)↑𝑃)))
5		eqid 2622	. . 3 ⊢ (𝑗 ∈ (0...𝑀) ↦ (𝑥 ∈ 𝑋 ↦ ((𝑥 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)))) = (𝑗 ∈ (0...𝑀) ↦ (𝑥 ∈ 𝑋 ↦ ((𝑥 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃))))
6		eqid 2622	. . 3 ⊢ (𝑥 ∈ 𝑋 ↦ ∏𝑗 ∈ (0...𝑀)(((𝑗 ∈ (0...𝑀) ↦ (𝑥 ∈ 𝑋 ↦ ((𝑥 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃))))‘𝑗)‘𝑥)) = (𝑥 ∈ 𝑋 ↦ ∏𝑗 ∈ (0...𝑀)(((𝑗 ∈ (0...𝑀) ↦ (𝑥 ∈ 𝑋 ↦ ((𝑥 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃))))‘𝑗)‘𝑥))
7	1, 2, 3, 4, 5, 6	etransclem4 40455	. 2 ⊢ (𝜑 → 𝐹 = (𝑥 ∈ 𝑋 ↦ ∏𝑗 ∈ (0...𝑀)(((𝑗 ∈ (0...𝑀) ↦ (𝑥 ∈ 𝑋 ↦ ((𝑥 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃))))‘𝑗)‘𝑥)))
8		simpr 477	. . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ (0...𝑀)) → 𝑗 ∈ (0...𝑀))
9		cnex 10017	. . . . . . . . 9 ⊢ ℂ ∈ V
10	9	ssex 4802	. . . . . . . 8 ⊢ (𝑋 ⊆ ℂ → 𝑋 ∈ V)
11		mptexg 6484	. . . . . . . 8 ⊢ (𝑋 ∈ V → (𝑦 ∈ 𝑋 ↦ ((𝑦 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃))) ∈ V)
12	1, 10, 11	3syl 18	. . . . . . 7 ⊢ (𝜑 → (𝑦 ∈ 𝑋 ↦ ((𝑦 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃))) ∈ V)
13	12	adantr 481	. . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ (0...𝑀)) → (𝑦 ∈ 𝑋 ↦ ((𝑦 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃))) ∈ V)
14		oveq1 6657	. . . . . . . . . 10 ⊢ (𝑥 = 𝑦 → (𝑥 − 𝑗) = (𝑦 − 𝑗))
15	14	oveq1d 6665	. . . . . . . . 9 ⊢ (𝑥 = 𝑦 → ((𝑥 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)) = ((𝑦 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)))
16	15	cbvmptv 4750	. . . . . . . 8 ⊢ (𝑥 ∈ 𝑋 ↦ ((𝑥 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃))) = (𝑦 ∈ 𝑋 ↦ ((𝑦 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)))
17	16	mpteq2i 4741	. . . . . . 7 ⊢ (𝑗 ∈ (0...𝑀) ↦ (𝑥 ∈ 𝑋 ↦ ((𝑥 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)))) = (𝑗 ∈ (0...𝑀) ↦ (𝑦 ∈ 𝑋 ↦ ((𝑦 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃))))
18	17	fvmpt2 6291	. . . . . 6 ⊢ ((𝑗 ∈ (0...𝑀) ∧ (𝑦 ∈ 𝑋 ↦ ((𝑦 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃))) ∈ V) → ((𝑗 ∈ (0...𝑀) ↦ (𝑥 ∈ 𝑋 ↦ ((𝑥 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃))))‘𝑗) = (𝑦 ∈ 𝑋 ↦ ((𝑦 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃))))
19	8, 13, 18	syl2anc 693	. . . . 5 ⊢ ((𝜑 ∧ 𝑗 ∈ (0...𝑀)) → ((𝑗 ∈ (0...𝑀) ↦ (𝑥 ∈ 𝑋 ↦ ((𝑥 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃))))‘𝑗) = (𝑦 ∈ 𝑋 ↦ ((𝑦 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃))))
20	19	adantlr 751	. . . 4 ⊢ (((𝜑 ∧ 𝑥 = 𝑌) ∧ 𝑗 ∈ (0...𝑀)) → ((𝑗 ∈ (0...𝑀) ↦ (𝑥 ∈ 𝑋 ↦ ((𝑥 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃))))‘𝑗) = (𝑦 ∈ 𝑋 ↦ ((𝑦 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃))))
21		simpr 477	. . . . . . . 8 ⊢ ((𝑥 = 𝑌 ∧ 𝑦 = 𝑥) → 𝑦 = 𝑥)
22		simpl 473	. . . . . . . 8 ⊢ ((𝑥 = 𝑌 ∧ 𝑦 = 𝑥) → 𝑥 = 𝑌)
23	21, 22	eqtrd 2656	. . . . . . 7 ⊢ ((𝑥 = 𝑌 ∧ 𝑦 = 𝑥) → 𝑦 = 𝑌)
24		oveq1 6657	. . . . . . . 8 ⊢ (𝑦 = 𝑌 → (𝑦 − 𝑗) = (𝑌 − 𝑗))
25	24	oveq1d 6665	. . . . . . 7 ⊢ (𝑦 = 𝑌 → ((𝑦 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)) = ((𝑌 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)))
26	23, 25	syl 17	. . . . . 6 ⊢ ((𝑥 = 𝑌 ∧ 𝑦 = 𝑥) → ((𝑦 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)) = ((𝑌 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)))
27	26	adantll 750	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 = 𝑌) ∧ 𝑦 = 𝑥) → ((𝑦 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)) = ((𝑌 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)))
28	27	adantlr 751	. . . 4 ⊢ ((((𝜑 ∧ 𝑥 = 𝑌) ∧ 𝑗 ∈ (0...𝑀)) ∧ 𝑦 = 𝑥) → ((𝑦 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)) = ((𝑌 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)))
29		simpr 477	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 = 𝑌) → 𝑥 = 𝑌)
30		etransclem13.y	. . . . . . 7 ⊢ (𝜑 → 𝑌 ∈ 𝑋)
31	30	adantr 481	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 = 𝑌) → 𝑌 ∈ 𝑋)
32	29, 31	eqeltrd 2701	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 = 𝑌) → 𝑥 ∈ 𝑋)
33	32	adantr 481	. . . 4 ⊢ (((𝜑 ∧ 𝑥 = 𝑌) ∧ 𝑗 ∈ (0...𝑀)) → 𝑥 ∈ 𝑋)
34		ovexd 6680	. . . 4 ⊢ (((𝜑 ∧ 𝑥 = 𝑌) ∧ 𝑗 ∈ (0...𝑀)) → ((𝑌 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)) ∈ V)
35	20, 28, 33, 34	fvmptd 6288	. . 3 ⊢ (((𝜑 ∧ 𝑥 = 𝑌) ∧ 𝑗 ∈ (0...𝑀)) → (((𝑗 ∈ (0...𝑀) ↦ (𝑥 ∈ 𝑋 ↦ ((𝑥 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃))))‘𝑗)‘𝑥) = ((𝑌 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)))
36	35	prodeq2dv 14653	. 2 ⊢ ((𝜑 ∧ 𝑥 = 𝑌) → ∏𝑗 ∈ (0...𝑀)(((𝑗 ∈ (0...𝑀) ↦ (𝑥 ∈ 𝑋 ↦ ((𝑥 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃))))‘𝑗)‘𝑥) = ∏𝑗 ∈ (0...𝑀)((𝑌 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)))
37		prodex 14637	. . 3 ⊢ ∏𝑗 ∈ (0...𝑀)((𝑌 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)) ∈ V
38	37	a1i 11	. 2 ⊢ (𝜑 → ∏𝑗 ∈ (0...𝑀)((𝑌 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)) ∈ V)
39	7, 36, 30, 38	fvmptd 6288	1 ⊢ (𝜑 → (𝐹‘𝑌) = ∏𝑗 ∈ (0...𝑀)((𝑌 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)))

Syntax hints:   → wi 4   ∧ wa 384   = wceq 1483   ∈ wcel 1990  Vcvv 3200   ⊆ wss 3574  ifcif 4086   ↦ cmpt 4729  ‘cfv 5888  (class class class)co 6650  ℂcc 9934  0cc0 9936  1c1 9937   · cmul 9941   − cmin 10266  ℕcn 11020  ℕ₀cn0 11292  ...cfz 12326  ↑cexp 12860  ∏cprod 14635

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-rep 4771  ax-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906  ax-un 6949  ax-inf2 8538  ax-cnex 9992  ax-resscn 9993  ax-1cn 9994  ax-icn 9995  ax-addcl 9996  ax-addrcl 9997  ax-mulcl 9998  ax-mulrcl 9999  ax-mulcom 10000  ax-addass 10001  ax-mulass 10002  ax-distr 10003  ax-i2m1 10004  ax-1ne0 10005  ax-1rid 10006  ax-rnegex 10007  ax-rrecex 10008  ax-cnre 10009  ax-pre-lttri 10010  ax-pre-lttrn 10011  ax-pre-ltadd 10012  ax-pre-mulgt0 10013  ax-pre-sup 10014

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1038  df-3an 1039  df-tru 1486  df-fal 1489  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-nel 2898  df-ral 2917  df-rex 2918  df-reu 2919  df-rmo 2920  df-rab 2921  df-v 3202  df-sbc 3436  df-csb 3534  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-pss 3590  df-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-tp 4182  df-op 4184  df-uni 4437  df-int 4476  df-iun 4522  df-br 4654  df-opab 4713  df-mpt 4730  df-tr 4753  df-id 5024  df-eprel 5029  df-po 5035  df-so 5036  df-fr 5073  df-se 5074  df-we 5075  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-rn 5125  df-res 5126  df-ima 5127  df-pred 5680  df-ord 5726  df-on 5727  df-lim 5728  df-suc 5729  df-iota 5851  df-fun 5890  df-fn 5891  df-f 5892  df-f1 5893  df-fo 5894  df-f1o 5895  df-fv 5896  df-isom 5897  df-riota 6611  df-ov 6653  df-oprab 6654  df-mpt2 6655  df-om 7066  df-1st 7168  df-2nd 7169  df-wrecs 7407  df-recs 7468  df-rdg 7506  df-1o 7560  df-oadd 7564  df-er 7742  df-en 7956  df-dom 7957  df-sdom 7958  df-fin 7959  df-sup 8348  df-oi 8415  df-card 8765  df-pnf 10076  df-mnf 10077  df-xr 10078  df-ltxr 10079  df-le 10080  df-sub 10268  df-neg 10269  df-div 10685  df-nn 11021  df-2 11079  df-3 11080  df-n0 11293  df-z 11378  df-uz 11688  df-rp 11833  df-fz 12327  df-fzo 12466  df-seq 12802  df-exp 12861  df-hash 13118  df-cj 13839  df-re 13840  df-im 13841  df-sqrt 13975  df-abs 13976  df-clim 14219  df-prod 14636

This theorem is referenced by:  etransclem18  40469  etransclem23  40474  etransclem46  40497