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Theorem funcsetcestrclem7 18084

Description: Lemma 7 for funcsetcestrc 18087. (Contributed by AV, 27-Mar-2020.)

**Hypotheses**
Ref	Expression
funcsetcestrc.s	⊢ 𝑆 = (SetCat‘𝑈)
funcsetcestrc.c	⊢ 𝐶 = (Base‘𝑆)
funcsetcestrc.f	⊢ (𝜑 → 𝐹 = (𝑥 ∈ 𝐶 ↦ {⟨(Base‘ndx), 𝑥⟩}))
funcsetcestrc.u	⊢ (𝜑 → 𝑈 ∈ WUni)
funcsetcestrc.o	⊢ (𝜑 → ω ∈ 𝑈)
funcsetcestrc.g	⊢ (𝜑 → 𝐺 = (𝑥 ∈ 𝐶, 𝑦 ∈ 𝐶 ↦ ( I ↾ (𝑦 ↑_m 𝑥))))
funcsetcestrc.e	⊢ 𝐸 = (ExtStrCat‘𝑈)

**Assertion**
Ref	Expression
funcsetcestrclem7	⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → ((𝑋𝐺𝑋)‘((Id‘𝑆)‘𝑋)) = ((Id‘𝐸)‘(𝐹‘𝑋)))

Distinct variable groups: 𝑥,𝐶 𝑥,𝑋 𝜑,𝑥 𝑦,𝐶,𝑥 𝑦,𝑋 𝜑,𝑦 Allowed substitution hints: 𝑆(𝑥,𝑦) 𝑈(𝑥,𝑦) 𝐸(𝑥,𝑦) 𝐹(𝑥,𝑦) 𝐺(𝑥,𝑦)

**Proof of Theorem funcsetcestrclem7**
Step	Hyp	Ref	Expression
1		funcsetcestrc.s	. . . . 5 ⊢ 𝑆 = (SetCat‘𝑈)
2		funcsetcestrc.c	. . . . 5 ⊢ 𝐶 = (Base‘𝑆)
3		funcsetcestrc.f	. . . . 5 ⊢ (𝜑 → 𝐹 = (𝑥 ∈ 𝐶 ↦ {⟨(Base‘ndx), 𝑥⟩}))
4		funcsetcestrc.u	. . . . 5 ⊢ (𝜑 → 𝑈 ∈ WUni)
5		funcsetcestrc.o	. . . . 5 ⊢ (𝜑 → ω ∈ 𝑈)
6		funcsetcestrc.g	. . . . 5 ⊢ (𝜑 → 𝐺 = (𝑥 ∈ 𝐶, 𝑦 ∈ 𝐶 ↦ ( I ↾ (𝑦 ↑_m 𝑥))))
7	1, 2, 3, 4, 5, 6	funcsetcestrclem5 18082	. . . 4 ⊢ ((𝜑 ∧ (𝑋 ∈ 𝐶 ∧ 𝑋 ∈ 𝐶)) → (𝑋𝐺𝑋) = ( I ↾ (𝑋 ↑_m 𝑋)))
8	7	anabsan2 674	. . 3 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → (𝑋𝐺𝑋) = ( I ↾ (𝑋 ↑_m 𝑋)))
9		eqid 2736	. . . 4 ⊢ (Id‘𝑆) = (Id‘𝑆)
10	4	adantr 480	. . . 4 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → 𝑈 ∈ WUni)
11	1, 4	setcbas 18002	. . . . . . 7 ⊢ (𝜑 → 𝑈 = (Base‘𝑆))
12	2, 11	eqtr4id 2790	. . . . . 6 ⊢ (𝜑 → 𝐶 = 𝑈)
13	12	eleq2d 2822	. . . . 5 ⊢ (𝜑 → (𝑋 ∈ 𝐶 ↔ 𝑋 ∈ 𝑈))
14	13	biimpa 476	. . . 4 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → 𝑋 ∈ 𝑈)
15	1, 9, 10, 14	setcid 18010	. . 3 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → ((Id‘𝑆)‘𝑋) = ( I ↾ 𝑋))
16	8, 15	fveq12d 6841	. 2 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → ((𝑋𝐺𝑋)‘((Id‘𝑆)‘𝑋)) = (( I ↾ (𝑋 ↑_m 𝑋))‘( I ↾ 𝑋)))
17		f1oi 6812	. . . . . 6 ⊢ ( I ↾ 𝑋):𝑋–1-1-onto→𝑋
18		f1of 6774	. . . . . 6 ⊢ (( I ↾ 𝑋):𝑋–1-1-onto→𝑋 → ( I ↾ 𝑋):𝑋⟶𝑋)
19	17, 18	ax-mp 5	. . . . 5 ⊢ ( I ↾ 𝑋):𝑋⟶𝑋
20		simpr 484	. . . . . 6 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → 𝑋 ∈ 𝐶)
21	20, 20	elmapd 8777	. . . . 5 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → (( I ↾ 𝑋) ∈ (𝑋 ↑_m 𝑋) ↔ ( I ↾ 𝑋):𝑋⟶𝑋))
22	19, 21	mpbiri 258	. . . 4 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → ( I ↾ 𝑋) ∈ (𝑋 ↑_m 𝑋))
23		fvresi 7119	. . . 4 ⊢ (( I ↾ 𝑋) ∈ (𝑋 ↑_m 𝑋) → (( I ↾ (𝑋 ↑_m 𝑋))‘( I ↾ 𝑋)) = ( I ↾ 𝑋))
24	22, 23	syl 17	. . 3 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → (( I ↾ (𝑋 ↑_m 𝑋))‘( I ↾ 𝑋)) = ( I ↾ 𝑋))
25		eqid 2736	. . . . . 6 ⊢ {⟨(Base‘ndx), 𝑋⟩} = {⟨(Base‘ndx), 𝑋⟩}
26	25	1strbas 17151	. . . . 5 ⊢ (𝑋 ∈ 𝐶 → 𝑋 = (Base‘{⟨(Base‘ndx), 𝑋⟩}))
27	20, 26	syl 17	. . . 4 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → 𝑋 = (Base‘{⟨(Base‘ndx), 𝑋⟩}))
28	27	reseq2d 5938	. . 3 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → ( I ↾ 𝑋) = ( I ↾ (Base‘{⟨(Base‘ndx), 𝑋⟩})))
29	24, 28	eqtrd 2771	. 2 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → (( I ↾ (𝑋 ↑_m 𝑋))‘( I ↾ 𝑋)) = ( I ↾ (Base‘{⟨(Base‘ndx), 𝑋⟩})))
30	1, 2, 3	funcsetcestrclem1 18077	. . . 4 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → (𝐹‘𝑋) = {⟨(Base‘ndx), 𝑋⟩})
31	30	fveq2d 6838	. . 3 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → ((Id‘𝐸)‘(𝐹‘𝑋)) = ((Id‘𝐸)‘{⟨(Base‘ndx), 𝑋⟩}))
32		funcsetcestrc.e	. . . 4 ⊢ 𝐸 = (ExtStrCat‘𝑈)
33		eqid 2736	. . . 4 ⊢ (Id‘𝐸) = (Id‘𝐸)
34	1, 2, 4, 5	setc1strwun 18076	. . . 4 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → {⟨(Base‘ndx), 𝑋⟩} ∈ 𝑈)
35	32, 33, 10, 34	estrcid 18057	. . 3 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → ((Id‘𝐸)‘{⟨(Base‘ndx), 𝑋⟩}) = ( I ↾ (Base‘{⟨(Base‘ndx), 𝑋⟩})))
36	31, 35	eqtr2d 2772	. 2 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → ( I ↾ (Base‘{⟨(Base‘ndx), 𝑋⟩})) = ((Id‘𝐸)‘(𝐹‘𝑋)))
37	16, 29, 36	3eqtrd 2775	1 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → ((𝑋𝐺𝑋)‘((Id‘𝑆)‘𝑋)) = ((Id‘𝐸)‘(𝐹‘𝑋)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 395 = wceq 1541 ∈ wcel 2113 {csn 4580 ⟨cop 4586 ↦ cmpt 5179 I cid 5518 ↾ cres 5626 ⟶wf 6488 –1-1-onto→wf1o 6491 ‘cfv 6492 (class class class)co 7358 ∈ cmpo 7360 ωcom 7808 ↑_m cmap 8763 WUnicwun 10611 ndxcnx 17120 Basecbs 17136 Idccid 17588 SetCatcsetc 17999 ExtStrCatcestrc 18045

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 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2184 ax-ext 2708 ax-rep 5224 ax-sep 5241 ax-nul 5251 ax-pow 5310 ax-pr 5377 ax-un 7680 ax-inf2 9550 ax-cnex 11082 ax-resscn 11083 ax-1cn 11084 ax-icn 11085 ax-addcl 11086 ax-addrcl 11087 ax-mulcl 11088 ax-mulrcl 11089 ax-mulcom 11090 ax-addass 11091 ax-mulass 11092 ax-distr 11093 ax-i2m1 11094 ax-1ne0 11095 ax-1rid 11096 ax-rnegex 11097 ax-rrecex 11098 ax-cnre 11099 ax-pre-lttri 11100 ax-pre-lttrn 11101 ax-pre-ltadd 11102 ax-pre-mulgt0 11103

This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3061 df-rmo 3350 df-reu 3351 df-rab 3400 df-v 3442 df-sbc 3741 df-csb 3850 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-pss 3921 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4581 df-pr 4583 df-tp 4585 df-op 4587 df-uni 4864 df-int 4903 df-iun 4948 df-br 5099 df-opab 5161 df-mpt 5180 df-tr 5206 df-id 5519 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5577 df-we 5579 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-pred 6259 df-ord 6320 df-on 6321 df-lim 6322 df-suc 6323 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-riota 7315 df-ov 7361 df-oprab 7362 df-mpo 7363 df-om 7809 df-1st 7933 df-2nd 7934 df-frecs 8223 df-wrecs 8254 df-recs 8303 df-rdg 8341 df-1o 8397 df-oadd 8401 df-omul 8402 df-er 8635 df-ec 8637 df-qs 8641 df-map 8765 df-pm 8766 df-en 8884 df-dom 8885 df-sdom 8886 df-fin 8887 df-wun 10613 df-ni 10783 df-pli 10784 df-mi 10785 df-lti 10786 df-plpq 10819 df-mpq 10820 df-ltpq 10821 df-enq 10822 df-nq 10823 df-erq 10824 df-plq 10825 df-mq 10826 df-1nq 10827 df-rq 10828 df-ltnq 10829 df-np 10892 df-plp 10894 df-ltp 10896 df-enr 10966 df-nr 10967 df-c 11032 df-pnf 11168 df-mnf 11169 df-xr 11170 df-ltxr 11171 df-le 11172 df-sub 11366 df-neg 11367 df-nn 12146 df-2 12208 df-3 12209 df-4 12210 df-5 12211 df-6 12212 df-7 12213 df-8 12214 df-9 12215 df-n0 12402 df-z 12489 df-dec 12608 df-uz 12752 df-fz 13424 df-struct 17074 df-slot 17109 df-ndx 17121 df-base 17137 df-hom 17201 df-cco 17202 df-cat 17591 df-cid 17592 df-setc 18000 df-estrc 18046

This theorem is referenced by: funcsetcestrc 18087

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