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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 22874 | . 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 6502 Topctop 22854 TopOnctopon 22871 |
| 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 2185 ax-ext 2709 ax-sep 5245 ax-nul 5255 ax-pow 5314 ax-pr 5381 ax-un 7692 |
| 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 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rab 3402 df-v 3444 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-mpt 5182 df-id 5529 df-xp 5640 df-rel 5641 df-cnv 5642 df-co 5643 df-dm 5644 df-iota 6458 df-fun 6504 df-fv 6510 df-topon 22872 |
| This theorem is referenced by: sn0top 22960 indistop 22963 letop 23167 dfac14 23579 cnfldtop 24744 sszcld 24779 iitop 24846 limccnp2 25866 cxpcn3 26731 lmlim 34131 pnfneige0 34135 sxbrsigalem4 34471 poimir 37933 islptre 46008 fourierdlem62 46555 |
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