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Mirrors > Home > MPE Home > Th. List > toponuni | 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 |
---|---|
toponuni | ⊢ (𝐽 ∈ (TopOn‘𝐵) → 𝐵 = ∪ 𝐽) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | istopon 20540 | . 2 ⊢ (𝐽 ∈ (TopOn‘𝐵) ↔ (𝐽 ∈ Top ∧ 𝐵 = ∪ 𝐽)) | |
2 | 1 | simprbi 479 | 1 ⊢ (𝐽 ∈ (TopOn‘𝐵) → 𝐵 = ∪ 𝐽) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1475 ∈ wcel 1977 ∪ cuni 4372 ‘cfv 5804 Topctop 20517 TopOnctopon 20518 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-ral 2901 df-rex 2902 df-rab 2905 df-v 3175 df-sbc 3403 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-op 4132 df-uni 4373 df-br 4584 df-opab 4644 df-mpt 4645 df-id 4953 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-iota 5768 df-fun 5806 df-fv 5812 df-topon 20523 |
This theorem is referenced by: toponmax 20543 toponss 20544 toponcom 20545 toponunii 20547 topgele 20549 topontopn 20557 toponmre 20707 cldmreon 20708 restuni 20776 resttopon2 20782 restlp 20797 restperf 20798 perfopn 20799 ordtcld1 20811 ordtcld2 20812 lmfval 20846 cnfval 20847 cnpfval 20848 cnpf2 20864 cnprcl2 20865 ssidcn 20869 iscnp4 20877 iscncl 20883 cncls2 20887 cncls 20888 cnntr 20889 cncnp 20894 lmcls 20916 lmcld 20917 iscnrm2 20952 ist0-2 20958 ist1-2 20961 ishaus2 20965 isreg2 20991 ordtt1 20993 sscmp 21018 dfcon2 21032 clscon 21043 concompcld 21047 1stccnp 21075 locfincf 21144 kgenval 21148 kgenuni 21152 1stckgenlem 21166 kgen2ss 21168 kgencn2 21170 txtopon 21204 txuni 21205 pttopon 21209 ptuniconst 21211 txcls 21217 ptclsg 21228 dfac14lem 21230 xkoccn 21232 ptcnplem 21234 ptcn 21240 cnmpt1t 21278 cnmpt2t 21286 cnmpt1res 21289 cnmpt2res 21290 cnmptkp 21293 cnmptk1p 21298 cnmptk2 21299 xkoinjcn 21300 elqtop3 21316 qtoptopon 21317 qtopcld 21326 qtoprest 21330 qtopcmap 21332 kqval 21339 kqcldsat 21346 isr0 21350 r0cld 21351 regr1lem 21352 kqnrmlem1 21356 kqnrmlem2 21357 pt1hmeo 21419 xpstopnlem1 21422 neifil 21494 trnei 21506 elflim 21585 flimss2 21586 flimss1 21587 flimopn 21589 fbflim2 21591 flimclslem 21598 flffval 21603 flfnei 21605 cnpflf2 21614 cnflf 21616 cnflf2 21617 isfcls2 21627 fclsopn 21628 fclsnei 21633 fclscmp 21644 ufilcmp 21646 fcfval 21647 fcfnei 21649 fcfelbas 21650 cnpfcf 21655 cnfcf 21656 alexsublem 21658 tmdcn2 21703 tmdgsum 21709 tmdgsum2 21710 symgtgp 21715 subgntr 21720 opnsubg 21721 clssubg 21722 clsnsg 21723 cldsubg 21724 tgpconcompeqg 21725 tgpconcomp 21726 ghmcnp 21728 snclseqg 21729 tgphaus 21730 tgpt1 21731 prdstmdd 21737 prdstgpd 21738 tsmsgsum 21752 tsmsid 21753 tsmsmhm 21759 tsmsadd 21760 tgptsmscld 21764 utop3cls 21865 mopnuni 22056 isxms2 22063 prdsxmslem2 22144 metdseq0 22465 cnmpt2pc 22535 ishtpy 22579 om1val 22638 pi1val 22645 csscld 22856 clsocv 22857 cfilfcls 22880 relcmpcmet 22923 limcres 23456 limccnp 23461 limccnp2 23462 dvbss 23471 perfdvf 23473 dvreslem 23479 dvres2lem 23480 dvcnp2 23489 dvaddbr 23507 dvmulbr 23508 dvcmulf 23514 dvmptres2 23531 dvmptcmul 23533 dvmptntr 23540 dvcnvrelem2 23585 ftc1cn 23610 taylthlem1 23931 ulmdvlem3 23960 efrlim 24496 pl1cn 29329 cvxpcon 30478 cvxscon 30479 ivthALT 31500 neibastop2 31526 neibastop3 31527 topmeet 31529 topjoin 31530 refsum2cnlem1 38219 dvresntr 38806 rrxunitopnfi 39188 |
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