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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 23287 | . 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 2147 ∪ cuni 4872 ‘cfv 6566 TopOnctopon 23283 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-sep 5255 ax-nul 5266 ax-pow 5334 ax-pr 5398 ax-un 7783 |
| 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 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4841 df-uni 4873 df-br 5109 df-opab 5174 df-mpt 5193 df-id 5553 df-xp 5664 df-rel 5665 df-cnv 5666 df-co 5667 df-dm 5668 df-iota 6520 df-fun 6568 df-fv 6574 df-topon 23284 |
| This theorem is used by: toponrestid 23294 indisuni 23376 indistpsx 23383 letopuni 23580 dfac14 23992 unicntop 25159 sszcld 25192 reperflem 25193 cnperf 25195 iiuni 25257 abscncfALT 25300 cncfcnvcn 25301 cnheiborlem 25330 cnheibor 25331 cnllycmp 25332 bndth 25334 mbfimaopnlem 26031 limcnlp 26253 limcflflem 26255 limcflf 26256 limcmo 26257 limcres 26261 limccnp 26266 limccnp2 26267 perfdvf 26278 recnperf 26280 dvcnp2 26295 dvaddbr 26313 dvmulbr 26314 dvcobr 26321 dvcnvlem 26351 lhop1lem 26388 taylthlem2 26758 abelth 26825 cxpcn3 27133 lgamucov 27422 ftalem3 27459 blocni 31464 ipasslem8 31496 ubthlem1 31529 tpr2uni 34648 tpr2rico 34655 mndpluscn 34669 raddcn 34672 cvxsconn 36216 cvmlift2lem11 36286 ivthALT 37338 poimir 38839 broucube 38840 ftc1cnnc 38878 dvasin 38890 dvacos 38891 dvreasin 38892 dvreacos 38893 areacirclem2 38895 reheibor 39039 islptre 46904 dirkercncf 47390 fourierdlem62 47451 |
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