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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 23081 | . 2 ⊢ (𝐽 ∈ (TopOn‘𝐵) → 𝐽 ∈ Top) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ 𝐽 ∈ Top |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2142 ‘cfv 6536 Topctop 23061 TopOnctopon 23078 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-sep 5256 ax-nul 5268 ax-pow 5335 ax-pr 5403 ax-un 7734 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1104 df-tru 1572 df-fal 1582 df-ex 1809 df-nf 1813 df-sb 2096 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-ral 3079 df-rex 3089 df-rab 3416 df-v 3456 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4487 df-pw 4563 df-sn 4589 df-pr 4591 df-op 4595 df-uni 4872 df-br 5109 df-opab 5173 df-mpt 5192 df-id 5555 df-xp 5666 df-rel 5667 df-cnv 5668 df-co 5669 df-dm 5670 df-iota 6492 df-fun 6538 df-fv 6544 df-topon 23079 |
| This theorem is used by: sn0top 23167 indistop 23170 letop 23374 dfac14 23786 cnfldtop 24951 sszcld 24986 iitop 25050 limccnp2 26062 cxpcn3 26924 lmlim 34346 pnfneige0 34350 sxbrsigalem4 34686 poimir 38332 islptre 46363 fourierdlem62 46910 |
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