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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 21519 | . 2 ⊢ (𝐽 ∈ (TopOn‘𝐵) ↔ (𝐽 ∈ Top ∧ 𝐵 = ∪ 𝐽)) | |
2 | 1 | simprbi 499 | 1 ⊢ (𝐽 ∈ (TopOn‘𝐵) → 𝐵 = ∪ 𝐽) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1533 ∈ wcel 2110 ∪ cuni 4837 ‘cfv 6354 Topctop 21500 TopOnctopon 21517 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5202 ax-nul 5209 ax-pow 5265 ax-pr 5329 ax-un 7460 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 df-sbc 3772 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4567 df-pr 4569 df-op 4573 df-uni 4838 df-br 5066 df-opab 5128 df-mpt 5146 df-id 5459 df-xp 5560 df-rel 5561 df-cnv 5562 df-co 5563 df-dm 5564 df-iota 6313 df-fun 6356 df-fv 6362 df-topon 21518 |
This theorem is referenced by: toponunii 21523 toponmax 21533 toponss 21534 toponcom 21535 topgele 21537 topontopn 21547 toponmre 21700 cldmreon 21701 restuni 21769 resttopon2 21775 restlp 21790 restperf 21791 perfopn 21792 ordtcld1 21804 ordtcld2 21805 lmfval 21839 cnfval 21840 cnpfval 21841 cnpf2 21857 cnprcl2 21858 ssidcn 21862 iscnp4 21870 iscncl 21876 cncls2 21880 cncls 21881 cnntr 21882 cncnp 21887 lmcls 21909 lmcld 21910 iscnrm2 21945 ist0-2 21951 ist1-2 21954 ishaus2 21958 isreg2 21984 ordtt1 21986 sscmp 22012 dfconn2 22026 clsconn 22037 conncompcld 22041 1stccnp 22069 locfincf 22138 kgenval 22142 kgenuni 22146 1stckgenlem 22160 kgen2ss 22162 kgencn2 22164 txtopon 22198 txuni 22199 pttopon 22203 ptuniconst 22205 txcls 22211 ptclsg 22222 dfac14lem 22224 xkoccn 22226 ptcnplem 22228 ptcn 22234 cnmpt1t 22272 cnmpt2t 22280 cnmpt1res 22283 cnmpt2res 22284 cnmptkp 22287 cnmptk1p 22292 cnmptk2 22293 xkoinjcn 22294 elqtop3 22310 qtoptopon 22311 qtopcld 22320 qtoprest 22324 qtopcmap 22326 kqval 22333 kqcldsat 22340 isr0 22344 r0cld 22345 regr1lem 22346 kqnrmlem1 22350 kqnrmlem2 22351 pt1hmeo 22413 xpstopnlem1 22416 neifil 22487 trnei 22499 elflim 22578 flimss2 22579 flimss1 22580 flimopn 22582 fbflim2 22584 flimclslem 22591 flffval 22596 flfnei 22598 cnpflf2 22607 cnflf 22609 cnflf2 22610 isfcls2 22620 fclsopn 22621 fclsnei 22626 fclscmp 22637 ufilcmp 22639 fcfval 22640 fcfnei 22642 fcfelbas 22643 cnpfcf 22648 cnfcf 22649 alexsublem 22651 tmdcn2 22696 tmdgsum 22702 tmdgsum2 22703 symgtgp 22713 subgntr 22714 opnsubg 22715 clssubg 22716 clsnsg 22717 cldsubg 22718 tgpconncompeqg 22719 tgpconncomp 22720 ghmcnp 22722 snclseqg 22723 tgphaus 22724 tgpt1 22725 prdstmdd 22731 prdstgpd 22732 tsmsgsum 22746 tsmsid 22747 tsmsmhm 22753 tsmsadd 22754 tgptsmscld 22758 utop3cls 22859 mopnuni 23050 isxms2 23057 prdsxmslem2 23138 metdseq0 23461 cnmpopc 23531 ishtpy 23575 om1val 23633 pi1val 23640 csscld 23851 clsocv 23852 cfilfcls 23876 relcmpcmet 23920 limcres 24483 limccnp 24488 limccnp2 24489 dvbss 24498 perfdvf 24500 dvreslem 24506 dvres2lem 24507 dvcnp2 24516 dvaddbr 24534 dvmulbr 24535 dvcmulf 24541 dvmptres2 24558 dvmptcmul 24560 dvmptntr 24567 dvcnvrelem2 24614 ftc1cn 24639 taylthlem1 24960 ulmdvlem3 24989 efrlim 25546 pl1cn 31198 cvxpconn 32489 cvxsconn 32490 ivthALT 33683 neibastop2 33709 neibastop3 33710 topmeet 33712 topjoin 33713 refsum2cnlem1 41292 dvresntr 42200 rrxunitopnfi 42576 |
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