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Theorem funcsetcestrclem7 18127

Description: Lemma 7 for funcsetcestrc 18130. (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 18125	. . . 4 ⊢ ((𝜑 ∧ (𝑋 ∈ 𝐶 ∧ 𝑋 ∈ 𝐶)) → (𝑋𝐺𝑋) = ( I ↾ (𝑋 ↑_m 𝑋)))
8	7	anabsan2 675	. . 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 18045	. . . . . . 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 18053	. . 3 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → ((Id‘𝑆)‘𝑋) = ( I ↾ 𝑋))
16	8, 15	fveq12d 6847	. 2 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → ((𝑋𝐺𝑋)‘((Id‘𝑆)‘𝑋)) = (( I ↾ (𝑋 ↑_m 𝑋))‘( I ↾ 𝑋)))
17		f1oi 6818	. . . . . 6 ⊢ ( I ↾ 𝑋):𝑋–1-1-onto→𝑋
18		f1of 6780	. . . . . 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 8787	. . . . 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 7128	. . . 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 17194	. . . . 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 5944	. . 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 18120	. . . 4 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → (𝐹‘𝑋) = {⟨(Base‘ndx), 𝑋⟩})
31	30	fveq2d 6844	. . 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 18119	. . . 4 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐶) → {⟨(Base‘ndx), 𝑋⟩} ∈ 𝑈)
35	32, 33, 10, 34	estrcid 18100	. . 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 1542 ∈ wcel 2114 {csn 4567 ⟨cop 4573 ↦ cmpt 5166 I cid 5525 ↾ cres 5633 ⟶wf 6494 –1-1-onto→wf1o 6497 ‘cfv 6498 (class class class)co 7367 ∈ cmpo 7369 ωcom 7817 ↑_m cmap 8773 WUnicwun 10623 ndxcnx 17163 Basecbs 17179 Idccid 17631 SetCatcsetc 18042 ExtStrCatcestrc 18088

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2708 ax-rep 5212 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 ax-inf2 9562 ax-cnex 11094 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-pre-mulgt0 11115

This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 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 3062 df-rmo 3342 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-pss 3909 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4851 df-int 4890 df-iun 4935 df-br 5086 df-opab 5148 df-mpt 5167 df-tr 5193 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6265 df-ord 6326 df-on 6327 df-lim 6328 df-suc 6329 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-om 7818 df-1st 7942 df-2nd 7943 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-1o 8405 df-oadd 8409 df-omul 8410 df-er 8643 df-ec 8645 df-qs 8649 df-map 8775 df-pm 8776 df-en 8894 df-dom 8895 df-sdom 8896 df-fin 8897 df-wun 10625 df-ni 10795 df-pli 10796 df-mi 10797 df-lti 10798 df-plpq 10831 df-mpq 10832 df-ltpq 10833 df-enq 10834 df-nq 10835 df-erq 10836 df-plq 10837 df-mq 10838 df-1nq 10839 df-rq 10840 df-ltnq 10841 df-np 10904 df-plp 10906 df-ltp 10908 df-enr 10978 df-nr 10979 df-c 11044 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 df-nn 12175 df-2 12244 df-3 12245 df-4 12246 df-5 12247 df-6 12248 df-7 12249 df-8 12250 df-9 12251 df-n0 12438 df-z 12525 df-dec 12645 df-uz 12789 df-fz 13462 df-struct 17117 df-slot 17152 df-ndx 17164 df-base 17180 df-hom 17244 df-cco 17245 df-cat 17634 df-cid 17635 df-setc 18043 df-estrc 18089

This theorem is referenced by: funcsetcestrc 18130

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