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Theorem funcsetcestrclem7 18077

Description: Lemma 7 for funcsetcestrc 18080. (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 18075	. . . 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 2733	. . . 4 ⊢ (Id‘𝑆) = (Id‘𝑆)
10	4	adantr 480	. . . 4 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → 𝑈 ∈ WUni)
11	1, 4	setcbas 17995	. . . . . . 7 ⊢ (𝜑 → 𝑈 = (Base‘𝑆))
12	2, 11	eqtr4id 2787	. . . . . 6 ⊢ (𝜑 → 𝐶 = 𝑈)
13	12	eleq2d 2819	. . . . 5 ⊢ (𝜑 → (𝑋 ∈ 𝐶 ↔ 𝑋 ∈ 𝑈))
14	13	biimpa 476	. . . 4 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → 𝑋 ∈ 𝑈)
15	1, 9, 10, 14	setcid 18003	. . 3 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → ((Id‘𝑆)‘𝑋) = ( I ↾ 𝑋))
16	8, 15	fveq12d 6838	. 2 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → ((𝑋𝐺𝑋)‘((Id‘𝑆)‘𝑋)) = (( I ↾ (𝑋 ↑_m 𝑋))‘( I ↾ 𝑋)))
17		f1oi 6809	. . . . . 6 ⊢ ( I ↾ 𝑋):𝑋–1-1-onto→𝑋
18		f1of 6771	. . . . . 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 8773	. . . . 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 7116	. . . 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 2733	. . . . . 6 ⊢ {⟨(Base‘ndx), 𝑋⟩} = {⟨(Base‘ndx), 𝑋⟩}
26	25	1strbas 17145	. . . . 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 5935	. . 3 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → ( I ↾ 𝑋) = ( I ↾ (Base‘{⟨(Base‘ndx), 𝑋⟩})))
29	24, 28	eqtrd 2768	. 2 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → (( I ↾ (𝑋 ↑_m 𝑋))‘( I ↾ 𝑋)) = ( I ↾ (Base‘{⟨(Base‘ndx), 𝑋⟩})))
30	1, 2, 3	funcsetcestrclem1 18070	. . . 4 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → (𝐹‘𝑋) = {⟨(Base‘ndx), 𝑋⟩})
31	30	fveq2d 6835	. . 3 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → ((Id‘𝐸)‘(𝐹‘𝑋)) = ((Id‘𝐸)‘{⟨(Base‘ndx), 𝑋⟩}))
32		funcsetcestrc.e	. . . 4 ⊢ 𝐸 = (ExtStrCat‘𝑈)
33		eqid 2733	. . . 4 ⊢ (Id‘𝐸) = (Id‘𝐸)
34	1, 2, 4, 5	setc1strwun 18069	. . . 4 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → {⟨(Base‘ndx), 𝑋⟩} ∈ 𝑈)
35	32, 33, 10, 34	estrcid 18050	. . 3 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → ((Id‘𝐸)‘{⟨(Base‘ndx), 𝑋⟩}) = ( I ↾ (Base‘{⟨(Base‘ndx), 𝑋⟩})))
36	31, 35	eqtr2d 2769	. 2 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → ( I ↾ (Base‘{⟨(Base‘ndx), 𝑋⟩})) = ((Id‘𝐸)‘(𝐹‘𝑋)))
37	16, 29, 36	3eqtrd 2772	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 4577 ⟨cop 4583 ↦ cmpt 5176 I cid 5515 ↾ cres 5623 ⟶wf 6485 –1-1-onto→wf1o 6488 ‘cfv 6489 (class class class)co 7355 ∈ cmpo 7357 ωcom 7805 ↑_m cmap 8759 WUnicwun 10601 ndxcnx 17114 Basecbs 17130 Idccid 17581 SetCatcsetc 17992 ExtStrCatcestrc 18038

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 2182 ax-ext 2705 ax-rep 5221 ax-sep 5238 ax-nul 5248 ax-pow 5307 ax-pr 5374 ax-un 7677 ax-inf2 9541 ax-cnex 11072 ax-resscn 11073 ax-1cn 11074 ax-icn 11075 ax-addcl 11076 ax-addrcl 11077 ax-mulcl 11078 ax-mulrcl 11079 ax-mulcom 11080 ax-addass 11081 ax-mulass 11082 ax-distr 11083 ax-i2m1 11084 ax-1ne0 11085 ax-1rid 11086 ax-rnegex 11087 ax-rrecex 11088 ax-cnre 11089 ax-pre-lttri 11090 ax-pre-lttrn 11091 ax-pre-ltadd 11092 ax-pre-mulgt0 11093

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 2537 df-eu 2566 df-clab 2712 df-cleq 2725 df-clel 2808 df-nfc 2883 df-ne 2931 df-nel 3035 df-ral 3050 df-rex 3059 df-rmo 3348 df-reu 3349 df-rab 3398 df-v 3440 df-sbc 3739 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4285 df-if 4477 df-pw 4553 df-sn 4578 df-pr 4580 df-tp 4582 df-op 4584 df-uni 4861 df-int 4900 df-iun 4945 df-br 5096 df-opab 5158 df-mpt 5177 df-tr 5203 df-id 5516 df-eprel 5521 df-po 5529 df-so 5530 df-fr 5574 df-we 5576 df-xp 5627 df-rel 5628 df-cnv 5629 df-co 5630 df-dm 5631 df-rn 5632 df-res 5633 df-ima 5634 df-pred 6256 df-ord 6317 df-on 6318 df-lim 6319 df-suc 6320 df-iota 6445 df-fun 6491 df-fn 6492 df-f 6493 df-f1 6494 df-fo 6495 df-f1o 6496 df-fv 6497 df-riota 7312 df-ov 7358 df-oprab 7359 df-mpo 7360 df-om 7806 df-1st 7930 df-2nd 7931 df-frecs 8220 df-wrecs 8251 df-recs 8300 df-rdg 8338 df-1o 8394 df-oadd 8398 df-omul 8399 df-er 8631 df-ec 8633 df-qs 8637 df-map 8761 df-pm 8762 df-en 8879 df-dom 8880 df-sdom 8881 df-fin 8882 df-wun 10603 df-ni 10773 df-pli 10774 df-mi 10775 df-lti 10776 df-plpq 10809 df-mpq 10810 df-ltpq 10811 df-enq 10812 df-nq 10813 df-erq 10814 df-plq 10815 df-mq 10816 df-1nq 10817 df-rq 10818 df-ltnq 10819 df-np 10882 df-plp 10884 df-ltp 10886 df-enr 10956 df-nr 10957 df-c 11022 df-pnf 11158 df-mnf 11159 df-xr 11160 df-ltxr 11161 df-le 11162 df-sub 11356 df-neg 11357 df-nn 12136 df-2 12198 df-3 12199 df-4 12200 df-5 12201 df-6 12202 df-7 12203 df-8 12204 df-9 12205 df-n0 12392 df-z 12479 df-dec 12599 df-uz 12743 df-fz 13418 df-struct 17068 df-slot 17103 df-ndx 17115 df-base 17131 df-hom 17195 df-cco 17196 df-cat 17584 df-cid 17585 df-setc 17993 df-estrc 18039

This theorem is referenced by: funcsetcestrc 18080

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