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| Mirrors > Home > MPE Home > Th. List > ishmeo | Structured version Visualization version GIF version | ||
| Description: The predicate F is a homeomorphism between topology 𝐽 and topology 𝐾. Criterion of [BourbakiTop1] p. I.2. (Contributed by FL, 14-Feb-2007.) (Revised by Mario Carneiro, 22-Aug-2015.) |
| Ref | Expression |
|---|---|
| ishmeo | ⊢ (𝐹 ∈ (𝐽Homeo𝐾) ↔ (𝐹 ∈ (𝐽 Cn 𝐾) ∧ ◡𝐹 ∈ (𝐾 Cn 𝐽))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cnveq 5856 | . . 3 ⊢ (𝑓 = 𝐹 → ◡𝑓 = ◡𝐹) | |
| 2 | 1 | eleq1d 2849 | . 2 ⊢ (𝑓 = 𝐹 → (◡𝑓 ∈ (𝐾 Cn 𝐽) ↔ ◡𝐹 ∈ (𝐾 Cn 𝐽))) |
| 3 | hmeofval 24092 | . 2 ⊢ (𝐽Homeo𝐾) = {𝑓 ∈ (𝐽 Cn 𝐾) ∣ ◡𝑓 ∈ (𝐾 Cn 𝐽)} | |
| 4 | 2, 3 | elrab2 3652 | 1 ⊢ (𝐹 ∈ (𝐽Homeo𝐾) ↔ (𝐹 ∈ (𝐽 Cn 𝐾) ∧ ◡𝐹 ∈ (𝐾 Cn 𝐽))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ↔ wb 209 ∧ wa 401 = wceq 1569 ∈ wcel 2146 ◡ccnv 5654 (class class class)co 7430 Cn ccn 23557 Homeochmeo 24087 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2196 ax-12 2215 ax-ext 2735 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7761 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2101 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-sbc 3743 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-br 5107 df-opab 5171 df-mpt 5190 df-id 5550 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-iota 6501 df-fun 6549 df-fn 6550 df-f 6551 df-fv 6555 df-ov 7433 df-oprab 7434 df-mpo 7435 df-map 8863 df-top 23227 df-topon 23244 df-cn 23560 df-hmeo 24089 |
| This theorem is used by: hmeocn 24094 hmeocnvcn 24095 hmeocnv 24096 hmeores 24105 hmeoco 24106 idhmeo 24107 indishmph 24132 cmphaushmeo 24134 ordthmeo 24136 txhmeo 24137 txswaphmeo 24139 pt1hmeo 24140 ptunhmeo 24142 xkohmeo 24149 qtopf1 24150 qtophmeo 24151 grpinvhmeo 24420 tgplacthmeo 24437 cncfcnvcn 25261 icchmeo 25277 cnrehmeo 25289 cnheiborlem 25290 ismtyhmeo 38882 |
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