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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 22974 | . 2 ⊢ (𝐽 ∈ (TopOn‘𝐵) → 𝐵 = ∪ 𝐽) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ 𝐵 = ∪ 𝐽 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1560 ∈ wcel 2142 ∪ cuni 4865 ‘cfv 6521 TopOnctopon 22970 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1815 ax-4 1829 ax-5 1930 ax-6 1987 ax-7 2028 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-sep 5246 ax-nul 5256 ax-pow 5322 ax-pr 5390 ax-un 7718 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1100 df-tru 1563 df-fal 1573 df-ex 1800 df-nf 1804 df-sb 2091 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-ral 3077 df-rex 3087 df-rab 3415 df-v 3456 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4481 df-pw 4557 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-mpt 5182 df-id 5542 df-xp 5653 df-rel 5654 df-cnv 5655 df-co 5656 df-dm 5657 df-iota 6477 df-fun 6523 df-fv 6529 df-topon 22971 |
| This theorem is referenced by: toponrestid 22981 indisuni 23063 indistpsx 23070 letopuni 23267 dfac14 23678 unicntop 24845 sszcld 24878 reperflem 24879 cnperf 24881 iiuni 24943 abscncfALT 24986 cncfcnvcn 24987 cnheiborlem 25016 cnheibor 25017 cnllycmp 25018 bndth 25020 mbfimaopnlem 25717 limcnlp 25940 limcflflem 25942 limcflf 25943 limcmo 25944 limcres 25948 limccnp 25953 limccnp2 25954 perfdvf 25965 recnperf 25967 dvcnp2 25982 dvaddbr 26000 dvmulbr 26001 dvcobr 26008 dvcnvlem 26038 lhop1lem 26075 taylthlem2 26437 abelth 26504 cxpcn3 26813 lgamucov 27102 ftalem3 27139 blocni 31008 ipasslem8 31040 ubthlem1 31073 tpr2uni 34202 tpr2rico 34209 mndpluscn 34223 raddcn 34226 cvxsconn 35593 cvmlift2lem11 35663 ivthALT 36695 poimir 38152 broucube 38153 ftc1cnnc 38191 dvasin 38203 dvacos 38204 dvreasin 38205 dvreacos 38206 areacirclem2 38208 reheibor 38338 islptre 46195 dirkercncf 46681 fourierdlem62 46742 |
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