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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 23071 | . 2 ⊢ (𝐽 ∈ (TopOn‘𝐵) → 𝐵 = ∪ 𝐽) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ 𝐵 = ∪ 𝐽 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1570 ∈ wcel 2143 ∪ cuni 4872 ‘cfv 6536 TopOnctopon 23067 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5257 ax-nul 5269 ax-pow 5336 ax-pr 5404 ax-un 7732 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3080 df-rex 3090 df-rab 3417 df-v 3457 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-nul 4287 df-if 4488 df-pw 4564 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4873 df-br 5110 df-opab 5174 df-mpt 5193 df-id 5556 df-xp 5667 df-rel 5668 df-cnv 5669 df-co 5670 df-dm 5671 df-iota 6492 df-fun 6538 df-fv 6544 df-topon 23068 |
| This theorem is referenced by: toponrestid 23078 indisuni 23160 indistpsx 23167 letopuni 23364 dfac14 23775 unicntop 24942 sszcld 24975 reperflem 24976 cnperf 24978 iiuni 25040 abscncfALT 25083 cncfcnvcn 25084 cnheiborlem 25113 cnheibor 25114 cnllycmp 25115 bndth 25117 mbfimaopnlem 25814 limcnlp 26037 limcflflem 26039 limcflf 26040 limcmo 26041 limcres 26045 limccnp 26050 limccnp2 26051 perfdvf 26062 recnperf 26064 dvcnp2 26079 dvaddbr 26097 dvmulbr 26098 dvcobr 26105 dvcnvlem 26135 lhop1lem 26172 taylthlem2 26537 abelth 26604 cxpcn3 26913 lgamucov 27202 ftalem3 27239 blocni 31157 ipasslem8 31189 ubthlem1 31222 tpr2uni 34295 tpr2rico 34302 mndpluscn 34316 raddcn 34319 cvxsconn 35735 cvmlift2lem11 35805 ivthALT 36846 poimir 38304 broucube 38305 ftc1cnnc 38343 dvasin 38355 dvacos 38356 dvreasin 38357 dvreacos 38358 areacirclem2 38360 reheibor 38490 islptre 46335 dirkercncf 46821 fourierdlem62 46882 |
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