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| Mirrors > Home > MPE Home > Th. List > t0hmph | Structured version Visualization version GIF version | ||
| Description: T0 is a topological property. (Contributed by Mario Carneiro, 25-Aug-2015.) |
| Ref | Expression |
|---|---|
| t0hmph | ⊢ (𝐽 ≃ 𝐾 → (𝐽 ∈ Kol2 → 𝐾 ∈ Kol2)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | t0top 23358 | . 2 ⊢ (𝐽 ∈ Kol2 → 𝐽 ∈ Top) | |
| 2 | cnt0 23375 | . 2 ⊢ ((𝐽 ∈ Kol2 ∧ 𝑓:∪ 𝐾–1-1→∪ 𝐽 ∧ 𝑓 ∈ (𝐾 Cn 𝐽)) → 𝐾 ∈ Kol2) | |
| 3 | 1, 2 | haushmphlem 23816 | 1 ⊢ (𝐽 ≃ 𝐾 → (𝐽 ∈ Kol2 → 𝐾 ∈ Kol2)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2132 ∪ cuni 4855 class class class wbr 5090 Kol2ct0 23335 ≃ chmph 23783 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1805 ax-4 1819 ax-5 1920 ax-6 1977 ax-7 2018 ax-8 2134 ax-9 2142 ax-10 2165 ax-11 2181 ax-12 2202 ax-ext 2724 ax-sep 5236 ax-nul 5246 ax-pow 5312 ax-pr 5380 ax-un 7703 |
| This theorem depends on definitions: df-bi 209 df-an 399 df-or 857 df-3an 1097 df-tru 1553 df-fal 1563 df-ex 1790 df-nf 1794 df-sb 2081 df-mo 2556 df-eu 2586 df-clab 2731 df-cleq 2744 df-clel 2827 df-nfc 2901 df-ne 2948 df-ral 3067 df-rex 3077 df-rab 3405 df-v 3446 df-sbc 3736 df-csb 3844 df-dif 3898 df-un 3900 df-in 3902 df-ss 3912 df-nul 4277 df-if 4471 df-pw 4547 df-sn 4573 df-pr 4575 df-op 4579 df-uni 4856 df-iun 4941 df-br 5091 df-opab 5153 df-mpt 5172 df-id 5531 df-xp 5642 df-rel 5643 df-cnv 5644 df-co 5645 df-dm 5646 df-rn 5647 df-res 5648 df-ima 5649 df-suc 6337 df-iota 6462 df-fun 6508 df-fn 6509 df-f 6510 df-f1 6511 df-fo 6512 df-f1o 6513 df-fv 6514 df-ov 7384 df-oprab 7385 df-mpo 7386 df-1st 7955 df-2nd 7956 df-1o 8421 df-map 8794 df-top 22923 df-topon 22940 df-cn 23256 df-t0 23342 df-hmeo 23784 df-hmph 23785 |
| This theorem is referenced by: t0kq 23847 kqhmph 23848 |
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