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Mirrors > Home > MPE Home > Th. List > Mathboxes > funcringcsetclem4ALTV | Structured version Visualization version GIF version |
Description: Lemma 4 for funcringcsetcALTV 44359. (Contributed by AV, 15-Feb-2020.) (New usage is discouraged.) |
Ref | Expression |
---|---|
funcringcsetcALTV.r | ⊢ 𝑅 = (RingCatALTV‘𝑈) |
funcringcsetcALTV.s | ⊢ 𝑆 = (SetCat‘𝑈) |
funcringcsetcALTV.b | ⊢ 𝐵 = (Base‘𝑅) |
funcringcsetcALTV.c | ⊢ 𝐶 = (Base‘𝑆) |
funcringcsetcALTV.u | ⊢ (𝜑 → 𝑈 ∈ WUni) |
funcringcsetcALTV.f | ⊢ (𝜑 → 𝐹 = (𝑥 ∈ 𝐵 ↦ (Base‘𝑥))) |
funcringcsetcALTV.g | ⊢ (𝜑 → 𝐺 = (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ ( I ↾ (𝑥 RingHom 𝑦)))) |
Ref | Expression |
---|---|
funcringcsetclem4ALTV | ⊢ (𝜑 → 𝐺 Fn (𝐵 × 𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2821 | . . 3 ⊢ (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ ( I ↾ (𝑥 RingHom 𝑦))) = (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ ( I ↾ (𝑥 RingHom 𝑦))) | |
2 | ovex 7189 | . . . 4 ⊢ (𝑥 RingHom 𝑦) ∈ V | |
3 | id 22 | . . . . 5 ⊢ ((𝑥 RingHom 𝑦) ∈ V → (𝑥 RingHom 𝑦) ∈ V) | |
4 | 3 | resiexd 6979 | . . . 4 ⊢ ((𝑥 RingHom 𝑦) ∈ V → ( I ↾ (𝑥 RingHom 𝑦)) ∈ V) |
5 | 2, 4 | ax-mp 5 | . . 3 ⊢ ( I ↾ (𝑥 RingHom 𝑦)) ∈ V |
6 | 1, 5 | fnmpoi 7768 | . 2 ⊢ (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ ( I ↾ (𝑥 RingHom 𝑦))) Fn (𝐵 × 𝐵) |
7 | funcringcsetcALTV.g | . . 3 ⊢ (𝜑 → 𝐺 = (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ ( I ↾ (𝑥 RingHom 𝑦)))) | |
8 | 7 | fneq1d 6446 | . 2 ⊢ (𝜑 → (𝐺 Fn (𝐵 × 𝐵) ↔ (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ ( I ↾ (𝑥 RingHom 𝑦))) Fn (𝐵 × 𝐵))) |
9 | 6, 8 | mpbiri 260 | 1 ⊢ (𝜑 → 𝐺 Fn (𝐵 × 𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1537 ∈ wcel 2114 Vcvv 3494 ↦ cmpt 5146 I cid 5459 × cxp 5553 ↾ cres 5557 Fn wfn 6350 ‘cfv 6355 (class class class)co 7156 ∈ cmpo 7158 WUnicwun 10122 Basecbs 16483 SetCatcsetc 17335 RingHom crh 19464 RingCatALTVcringcALTV 44295 |
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 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-rep 5190 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-ral 3143 df-rex 3144 df-reu 3145 df-rab 3147 df-v 3496 df-sbc 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-nul 4292 df-if 4468 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4839 df-iun 4921 df-br 5067 df-opab 5129 df-mpt 5147 df-id 5460 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-f1 6360 df-fo 6361 df-f1o 6362 df-fv 6363 df-ov 7159 df-oprab 7160 df-mpo 7161 df-1st 7689 df-2nd 7690 |
This theorem is referenced by: funcringcsetcALTV 44359 |
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