Theorem etransclem13 43256

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 2759	. . 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 2759	. . 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 43247	. 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 489	. . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ (0...𝑀)) → 𝑗 ∈ (0...𝑀))
9		cnex 10657	. . . . . . . . 9 ⊢ ℂ ∈ V
10	9	ssex 5192	. . . . . . . 8 ⊢ (𝑋 ⊆ ℂ → 𝑋 ∈ V)
11		mptexg 6976	. . . . . . . 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 485	. . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ (0...𝑀)) → (𝑦 ∈ 𝑋 ↦ ((𝑦 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃))) ∈ V)
14		oveq1 7158	. . . . . . . . . 10 ⊢ (𝑥 = 𝑦 → (𝑥 − 𝑗) = (𝑦 − 𝑗))
15	14	oveq1d 7166	. . . . . . . . 9 ⊢ (𝑥 = 𝑦 → ((𝑥 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)) = ((𝑦 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)))
16	15	cbvmptv 5136	. . . . . . . 8 ⊢ (𝑥 ∈ 𝑋 ↦ ((𝑥 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃))) = (𝑦 ∈ 𝑋 ↦ ((𝑦 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)))
17	16	mpteq2i 5125	. . . . . . 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 6771	. . . . . 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 588	. . . . 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 715	. . . 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 489	. . . . . . . 8 ⊢ ((𝑥 = 𝑌 ∧ 𝑦 = 𝑥) → 𝑦 = 𝑥)
22		simpl 487	. . . . . . . 8 ⊢ ((𝑥 = 𝑌 ∧ 𝑦 = 𝑥) → 𝑥 = 𝑌)
23	21, 22	eqtrd 2794	. . . . . . 7 ⊢ ((𝑥 = 𝑌 ∧ 𝑦 = 𝑥) → 𝑦 = 𝑌)
24		oveq1 7158	. . . . . . . 8 ⊢ (𝑦 = 𝑌 → (𝑦 − 𝑗) = (𝑌 − 𝑗))
25	24	oveq1d 7166	. . . . . . 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 714	. . . . 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 715	. . . 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 489	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 = 𝑌) → 𝑥 = 𝑌)
30		etransclem13.y	. . . . . . 7 ⊢ (𝜑 → 𝑌 ∈ 𝑋)
31	30	adantr 485	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 = 𝑌) → 𝑌 ∈ 𝑋)
32	29, 31	eqeltrd 2853	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 = 𝑌) → 𝑥 ∈ 𝑋)
33	32	adantr 485	. . . 4 ⊢ (((𝜑 ∧ 𝑥 = 𝑌) ∧ 𝑗 ∈ (0...𝑀)) → 𝑥 ∈ 𝑋)
34		ovexd 7186	. . . 4 ⊢ (((𝜑 ∧ 𝑥 = 𝑌) ∧ 𝑗 ∈ (0...𝑀)) → ((𝑌 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)) ∈ V)
35	20, 28, 33, 34	fvmptd 6767	. . 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 15326	. 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 15310	. . 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 6767	1 ⊢ (𝜑 → (𝐹‘𝑌) = ∏𝑗 ∈ (0...𝑀)((𝑌 − 𝑗)↑if(𝑗 = 0, (𝑃 − 1), 𝑃)))

Syntax hints:   → wi 4   ∧ wa 400   = wceq 1539   ∈ wcel 2112  Vcvv 3410   ⊆ wss 3859  ifcif 4421   ↦ cmpt 5113  ‘cfv 6336  (class class class)co 7151  ℂcc 10574  0cc0 10576  1c1 10577   · cmul 10581   − cmin 10909  ℕcn 11675  ℕ₀cn0 11935  ...cfz 12940  ↑cexp 13480  ∏cprod 15308

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1912  ax-6 1971  ax-7 2016  ax-8 2114  ax-9 2122  ax-10 2143  ax-11 2159  ax-12 2176  ax-ext 2730  ax-rep 5157  ax-sep 5170  ax-nul 5177  ax-pow 5235  ax-pr 5299  ax-un 7460  ax-inf2 9138  ax-cnex 10632  ax-resscn 10633  ax-1cn 10634  ax-icn 10635  ax-addcl 10636  ax-addrcl 10637  ax-mulcl 10638  ax-mulrcl 10639  ax-mulcom 10640  ax-addass 10641  ax-mulass 10642  ax-distr 10643  ax-i2m1 10644  ax-1ne0 10645  ax-1rid 10646  ax-rnegex 10647  ax-rrecex 10648  ax-cnre 10649  ax-pre-lttri 10650  ax-pre-lttrn 10651  ax-pre-ltadd 10652  ax-pre-mulgt0 10653  ax-pre-sup 10654

This theorem depends on definitions:  df-bi 210  df-an 401  df-or 846  df-3or 1086  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1783  df-nf 1787  df-sb 2071  df-mo 2558  df-eu 2589  df-clab 2737  df-cleq 2751  df-clel 2831  df-nfc 2902  df-ne 2953  df-nel 3057  df-ral 3076  df-rex 3077  df-reu 3078  df-rmo 3079  df-rab 3080  df-v 3412  df-sbc 3698  df-csb 3807  df-dif 3862  df-un 3864  df-in 3866  df-ss 3876  df-pss 3878  df-nul 4227  df-if 4422  df-pw 4497  df-sn 4524  df-pr 4526  df-tp 4528  df-op 4530  df-uni 4800  df-int 4840  df-iun 4886  df-br 5034  df-opab 5096  df-mpt 5114  df-tr 5140  df-id 5431  df-eprel 5436  df-po 5444  df-so 5445  df-fr 5484  df-se 5485  df-we 5486  df-xp 5531  df-rel 5532  df-cnv 5533  df-co 5534  df-dm 5535  df-rn 5536  df-res 5537  df-ima 5538  df-pred 6127  df-ord 6173  df-on 6174  df-lim 6175  df-suc 6176  df-iota 6295  df-fun 6338  df-fn 6339  df-f 6340  df-f1 6341  df-fo 6342  df-f1o 6343  df-fv 6344  df-isom 6345  df-riota 7109  df-ov 7154  df-oprab 7155  df-mpo 7156  df-om 7581  df-1st 7694  df-2nd 7695  df-wrecs 7958  df-recs 8019  df-rdg 8057  df-1o 8113  df-er 8300  df-en 8529  df-dom 8530  df-sdom 8531  df-fin 8532  df-sup 8940  df-oi 9008  df-card 9402  df-pnf 10716  df-mnf 10717  df-xr 10718  df-ltxr 10719  df-le 10720  df-sub 10911  df-neg 10912  df-div 11337  df-nn 11676  df-2 11738  df-3 11739  df-n0 11936  df-z 12022  df-uz 12284  df-rp 12432  df-fz 12941  df-fzo 13084  df-seq 13420  df-exp 13481  df-hash 13742  df-cj 14507  df-re 14508  df-im 14509  df-sqrt 14643  df-abs 14644  df-clim 14894  df-prod 15309

This theorem is referenced by:  etransclem18  43261  etransclem23  43266  etransclem46  43289