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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 23121 | . 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 2146 ∪ cuni 4874 ‘cfv 6540 TopOnctopon 23117 |
| 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 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7742 |
| 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 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-ral 3082 df-rex 3092 df-rab 3419 df-v 3459 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-br 5112 df-opab 5176 df-mpt 5195 df-id 5558 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-iota 6496 df-fun 6542 df-fv 6548 df-topon 23118 |
| This theorem is used by: toponrestid 23128 indisuni 23210 indistpsx 23217 letopuni 23414 dfac14 23826 unicntop 24993 sszcld 25026 reperflem 25027 cnperf 25029 iiuni 25091 abscncfALT 25134 cncfcnvcn 25135 cnheiborlem 25164 cnheibor 25165 cnllycmp 25166 bndth 25168 mbfimaopnlem 25865 limcnlp 26088 limcflflem 26090 limcflf 26091 limcmo 26092 limcres 26096 limccnp 26101 limccnp2 26102 perfdvf 26113 recnperf 26115 dvcnp2 26130 dvaddbr 26148 dvmulbr 26149 dvcobr 26156 dvcnvlem 26186 lhop1lem 26223 taylthlem2 26588 abelth 26655 cxpcn3 26964 lgamucov 27253 ftalem3 27290 blocni 31228 ipasslem8 31260 ubthlem1 31293 tpr2uni 34359 tpr2rico 34366 mndpluscn 34380 raddcn 34383 cvxsconn 35772 cvmlift2lem11 35842 ivthALT 36903 poimir 38361 broucube 38362 ftc1cnnc 38400 dvasin 38412 dvacos 38413 dvreasin 38414 dvreacos 38415 areacirclem2 38417 reheibor 38548 islptre 46393 dirkercncf 46879 fourierdlem62 46940 |
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