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| Mirrors > Home > MPE Home > Th. List > invisoinvr | Structured version Visualization version GIF version | ||
| Description: The inverse of an isomorphism is invers to the isomorphism. (Contributed by AV, 9-Apr-2020.) |
| Ref | Expression |
|---|---|
| invisoinv.b | ⊢ 𝐵 = (Base‘𝐶) |
| invisoinv.i | ⊢ 𝐼 = (Iso‘𝐶) |
| invisoinv.n | ⊢ 𝑁 = (Inv‘𝐶) |
| invisoinv.c | ⊢ (𝜑 → 𝐶 ∈ Cat) |
| invisoinv.x | ⊢ (𝜑 → 𝑋 ∈ 𝐵) |
| invisoinv.y | ⊢ (𝜑 → 𝑌 ∈ 𝐵) |
| invisoinv.f | ⊢ (𝜑 → 𝐹 ∈ (𝑋𝐼𝑌)) |
| Ref | Expression |
|---|---|
| invisoinvr | ⊢ (𝜑 → 𝐹(𝑋𝑁𝑌)((𝑋𝑁𝑌)‘𝐹)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | invisoinv.b | . . 3 ⊢ 𝐵 = (Base‘𝐶) | |
| 2 | invisoinv.i | . . 3 ⊢ 𝐼 = (Iso‘𝐶) | |
| 3 | invisoinv.n | . . 3 ⊢ 𝑁 = (Inv‘𝐶) | |
| 4 | invisoinv.c | . . 3 ⊢ (𝜑 → 𝐶 ∈ Cat) | |
| 5 | invisoinv.x | . . 3 ⊢ (𝜑 → 𝑋 ∈ 𝐵) | |
| 6 | invisoinv.y | . . 3 ⊢ (𝜑 → 𝑌 ∈ 𝐵) | |
| 7 | invisoinv.f | . . 3 ⊢ (𝜑 → 𝐹 ∈ (𝑋𝐼𝑌)) | |
| 8 | 1, 2, 3, 4, 5, 6, 7 | invisoinvl 17825 | . 2 ⊢ (𝜑 → ((𝑋𝑁𝑌)‘𝐹)(𝑌𝑁𝑋)𝐹) |
| 9 | 1, 3, 4, 5, 6 | invsym 17797 | . 2 ⊢ (𝜑 → (𝐹(𝑋𝑁𝑌)((𝑋𝑁𝑌)‘𝐹) ↔ ((𝑋𝑁𝑌)‘𝐹)(𝑌𝑁𝑋)𝐹)) |
| 10 | 8, 9 | mpbird 259 | 1 ⊢ (𝜑 → 𝐹(𝑋𝑁𝑌)((𝑋𝑁𝑌)‘𝐹)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1562 ∈ wcel 2144 class class class wbr 5102 ‘cfv 6523 (class class class)co 7398 Basecbs 17247 Catccat 17698 Invcinv 17780 Isociso 17781 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1817 ax-4 1831 ax-5 1932 ax-6 1989 ax-7 2030 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2214 ax-ext 2736 ax-rep 5229 ax-sep 5248 ax-nul 5258 ax-pow 5324 ax-pr 5392 ax-un 7720 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1101 df-tru 1565 df-fal 1575 df-ex 1802 df-nf 1806 df-sb 2093 df-mo 2568 df-eu 2598 df-clab 2743 df-cleq 2756 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3079 df-rex 3089 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3458 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4288 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5103 df-opab 5165 df-mpt 5184 df-id 5544 df-xp 5655 df-rel 5656 df-cnv 5657 df-co 5658 df-dm 5659 df-rn 5660 df-res 5661 df-ima 5662 df-iota 6479 df-fun 6525 df-fn 6526 df-f 6527 df-f1 6528 df-fo 6529 df-f1o 6530 df-fv 6531 df-riota 7355 df-ov 7401 df-oprab 7402 df-mpo 7403 df-1st 7972 df-2nd 7973 df-cat 17702 df-cid 17703 df-sect 17782 df-inv 17783 df-iso 17784 |
| This theorem is referenced by: invcoisoid 17827 funciso 17909 fuciso 18013 |
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