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| Mirrors > Home > MPE Home > Th. List > topontopi | Structured version Visualization version GIF version | ||
| Description: A topology on a given base set is a topology. (Contributed by Mario Carneiro, 13-Aug-2015.) |
| Ref | Expression |
|---|---|
| topontopi.1 | ⊢ 𝐽 ∈ (TopOn‘𝐵) |
| Ref | Expression |
|---|---|
| topontopi | ⊢ 𝐽 ∈ Top |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | topontopi.1 | . 2 ⊢ 𝐽 ∈ (TopOn‘𝐵) | |
| 2 | topontop 22866 | . 2 ⊢ (𝐽 ∈ (TopOn‘𝐵) → 𝐽 ∈ Top) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ 𝐽 ∈ Top |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2114 ‘cfv 6487 Topctop 22846 TopOnctopon 22863 |
| 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 2184 ax-ext 2707 ax-sep 5220 ax-nul 5230 ax-pow 5296 ax-pr 5364 ax-un 7678 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2538 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2810 df-nfc 2884 df-ne 2931 df-ral 3050 df-rex 3060 df-rab 3388 df-v 3429 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-nul 4264 df-if 4457 df-pw 4533 df-sn 4558 df-pr 4560 df-op 4564 df-uni 4841 df-br 5075 df-opab 5137 df-mpt 5156 df-id 5515 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-iota 6443 df-fun 6489 df-fv 6495 df-topon 22864 |
| This theorem is referenced by: sn0top 22952 indistop 22955 letop 23159 dfac14 23571 cnfldtop 24736 sszcld 24771 iitop 24835 limccnp2 25847 cxpcn3 26700 lmlim 34079 pnfneige0 34083 sxbrsigalem4 34419 poimir 37962 islptre 46037 fourierdlem62 46584 |
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