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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 22897 | . 2 ⊢ (𝐽 ∈ (TopOn‘𝐵) → 𝐵 = ∪ 𝐽) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ 𝐵 = ∪ 𝐽 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1547 ∈ wcel 2119 ∪ cuni 4838 ‘cfv 6485 TopOnctopon 22893 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2711 ax-sep 5218 ax-nul 5228 ax-pow 5294 ax-pr 5362 ax-un 7678 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2718 df-cleq 2731 df-clel 2814 df-nfc 2888 df-ne 2935 df-ral 3054 df-rex 3064 df-rab 3392 df-v 3433 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4262 df-if 4455 df-pw 4531 df-sn 4556 df-pr 4558 df-op 4562 df-uni 4839 df-br 5073 df-opab 5135 df-mpt 5154 df-id 5513 df-xp 5624 df-rel 5625 df-cnv 5626 df-co 5627 df-dm 5628 df-iota 6441 df-fun 6487 df-fv 6493 df-topon 22894 |
| This theorem is referenced by: toponrestid 22904 indisuni 22986 indistpsx 22993 letopuni 23190 dfac14 23601 unicntop 24768 sszcld 24801 reperflem 24802 cnperf 24804 iiuni 24866 abscncfALT 24909 cncfcnvcn 24910 cnheiborlem 24939 cnheibor 24940 cnllycmp 24941 bndth 24943 mbfimaopnlem 25640 limcnlp 25863 limcflflem 25865 limcflf 25866 limcmo 25867 limcres 25871 limccnp 25876 limccnp2 25877 perfdvf 25888 recnperf 25890 dvcnp2 25905 dvaddbr 25923 dvmulbr 25924 dvcobr 25931 dvcnvlem 25961 lhop1lem 25998 taylthlem2 26357 abelth 26424 cxpcn3 26730 lgamucov 27019 ftalem3 27056 blocni 30894 ipasslem8 30926 ubthlem1 30959 tpr2uni 34089 tpr2rico 34096 mndpluscn 34110 raddcn 34113 cvxsconn 35471 cvmlift2lem11 35541 ivthALT 36563 poimir 38020 broucube 38021 ftc1cnnc 38059 dvasin 38071 dvacos 38072 dvreasin 38073 dvreacos 38074 areacirclem2 38076 reheibor 38206 islptre 46064 dirkercncf 46550 fourierdlem62 46611 |
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