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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 23039 | . 2 ⊢ (𝐽 ∈ (TopOn‘𝐵) → 𝐵 = ∪ 𝐽) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ 𝐵 = ∪ 𝐽 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1567 ∈ wcel 2149 ∪ cuni 4876 ‘cfv 6537 TopOnctopon 23035 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-sep 5261 ax-nul 5271 ax-pow 5337 ax-pr 5405 ax-un 7733 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-ral 3086 df-rex 3096 df-rab 3424 df-v 3465 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-br 5114 df-opab 5178 df-mpt 5197 df-id 5557 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-iota 6493 df-fun 6539 df-fv 6545 df-topon 23036 |
| This theorem is referenced by: toponrestid 23046 indisuni 23128 indistpsx 23135 letopuni 23332 dfac14 23743 unicntop 24910 sszcld 24943 reperflem 24944 cnperf 24946 iiuni 25008 abscncfALT 25051 cncfcnvcn 25052 cnheiborlem 25081 cnheibor 25082 cnllycmp 25083 bndth 25085 mbfimaopnlem 25782 limcnlp 26005 limcflflem 26007 limcflf 26008 limcmo 26009 limcres 26013 limccnp 26018 limccnp2 26019 perfdvf 26030 recnperf 26032 dvcnp2 26047 dvaddbr 26065 dvmulbr 26066 dvcobr 26073 dvcnvlem 26103 lhop1lem 26140 taylthlem2 26502 abelth 26569 cxpcn3 26878 lgamucov 27167 ftalem3 27204 blocni 31097 ipasslem8 31129 ubthlem1 31162 tpr2uni 34239 tpr2rico 34246 mndpluscn 34260 raddcn 34263 cvxsconn 35633 cvmlift2lem11 35703 ivthALT 36734 poimir 38191 broucube 38192 ftc1cnnc 38230 dvasin 38242 dvacos 38243 dvreasin 38244 dvreacos 38245 areacirclem2 38247 reheibor 38377 islptre 46226 dirkercncf 46712 fourierdlem62 46773 |
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