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| Mirrors > Home > MPE Home > Th. List > toponunii | Structured version Visualization version GIF version | ||
| Description: The base set of a topology on a given base set. (Contributed by Mario Carneiro, 13-Aug-2015.) |
| Ref | Expression |
|---|---|
| topontopi.1 | ⊢ 𝐽 ∈ (TopOn‘𝐵) |
| Ref | Expression |
|---|---|
| toponunii | ⊢ 𝐵 = ∪ 𝐽 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | topontopi.1 | . 2 ⊢ 𝐽 ∈ (TopOn‘𝐵) | |
| 2 | toponuni 23232 | . 2 ⊢ (𝐽 ∈ (TopOn‘𝐵) → 𝐵 = ∪ 𝐽) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ 𝐵 = ∪ 𝐽 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ∈ wcel 2145 ∪ cuni 4867 ‘cfv 6538 TopOnctopon 23228 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7751 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3078 df-rex 3088 df-rab 3414 df-v 3453 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-opab 5168 df-mpt 5187 df-id 5546 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-iota 6494 df-fun 6540 df-fv 6546 df-topon 23229 |
| This theorem is used by: toponrestid 23239 indisuni 23321 indistpsx 23328 letopuni 23525 dfac14 23937 unicntop 25104 sszcld 25137 reperflem 25138 cnperf 25140 iiuni 25202 abscncfALT 25245 cncfcnvcn 25246 cnheiborlem 25275 cnheibor 25276 cnllycmp 25277 bndth 25279 mbfimaopnlem 25976 limcnlp 26198 limcflflem 26200 limcflf 26201 limcmo 26202 limcres 26206 limccnp 26211 limccnp2 26212 perfdvf 26223 recnperf 26225 dvcnp2 26240 dvaddbr 26258 dvmulbr 26259 dvcobr 26266 dvcnvlem 26296 lhop1lem 26333 taylthlem2 26701 abelth 26768 cxpcn3 27076 lgamucov 27365 ftalem3 27402 blocni 31407 ipasslem8 31439 ubthlem1 31472 tpr2uni 34537 tpr2rico 34544 mndpluscn 34558 raddcn 34561 cvxsconn 36008 cvmlift2lem11 36078 ivthALT 37123 poimir 38571 broucube 38572 ftc1cnnc 38610 dvasin 38622 dvacos 38623 dvreasin 38624 dvreacos 38625 areacirclem2 38627 reheibor 38773 islptre 46630 dirkercncf 47116 fourierdlem62 47177 |
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