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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 23241 | . 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 1569 ∈ wcel 2144 ∪ cuni 4866 ‘cfv 6543 TopOnctopon 23237 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pow 5327 ax-pr 5391 ax-un 7755 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-ss 3897 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5546 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-iota 6497 df-fun 6545 df-fv 6551 df-topon 23238 |
| This theorem is used by: toponrestid 23248 indisuni 23330 indistpsx 23337 letopuni 23534 dfac14 23946 unicntop 25113 sszcld 25146 reperflem 25147 cnperf 25149 iiuni 25211 abscncfALT 25254 cncfcnvcn 25255 cnheiborlem 25284 cnheibor 25285 cnllycmp 25286 bndth 25288 mbfimaopnlem 25985 limcnlp 26207 limcflflem 26209 limcflf 26210 limcmo 26211 limcres 26215 limccnp 26220 limccnp2 26221 perfdvf 26232 recnperf 26234 dvcnp2 26249 dvaddbr 26267 dvmulbr 26268 dvcobr 26275 dvcnvlem 26305 lhop1lem 26342 taylthlem2 26710 abelth 26777 cxpcn3 27085 lgamucov 27374 ftalem3 27411 blocni 31416 ipasslem8 31448 ubthlem1 31481 tpr2uni 34587 tpr2rico 34594 mndpluscn 34608 raddcn 34611 cvxsconn 36126 cvmlift2lem11 36196 ivthALT 37247 poimir 38708 broucube 38709 ftc1cnnc 38747 dvasin 38759 dvacos 38760 dvreasin 38761 dvreacos 38762 areacirclem2 38764 reheibor 38910 islptre 46767 dirkercncf 47253 fourierdlem62 47314 |
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