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Mirrors > Home > MPE Home > Th. List > topontop | Structured version Visualization version GIF version |
Description: A topology on a given base set is a topology. (Contributed by Mario Carneiro, 13-Aug-2015.) |
Ref | Expression |
---|---|
topontop | ⊢ (𝐽 ∈ (TopOn‘𝐵) → 𝐽 ∈ Top) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | istopon 21763 | . 2 ⊢ (𝐽 ∈ (TopOn‘𝐵) ↔ (𝐽 ∈ Top ∧ 𝐵 = ∪ 𝐽)) | |
2 | 1 | simplbi 501 | 1 ⊢ (𝐽 ∈ (TopOn‘𝐵) → 𝐽 ∈ Top) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1543 ∈ wcel 2112 ∪ cuni 4805 ‘cfv 6358 Topctop 21744 TopOnctopon 21761 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2018 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2160 ax-12 2177 ax-ext 2708 ax-sep 5177 ax-nul 5184 ax-pow 5243 ax-pr 5307 ax-un 7501 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2073 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2728 df-clel 2809 df-nfc 2879 df-ne 2933 df-ral 3056 df-rex 3057 df-rab 3060 df-v 3400 df-sbc 3684 df-dif 3856 df-un 3858 df-in 3860 df-ss 3870 df-nul 4224 df-if 4426 df-pw 4501 df-sn 4528 df-pr 4530 df-op 4534 df-uni 4806 df-br 5040 df-opab 5102 df-mpt 5121 df-id 5440 df-xp 5542 df-rel 5543 df-cnv 5544 df-co 5545 df-dm 5546 df-iota 6316 df-fun 6360 df-fv 6366 df-topon 21762 |
This theorem is referenced by: topontopi 21766 topontopon 21770 toprntopon 21776 toponmax 21777 topgele 21781 istps 21785 en2top 21836 pptbas 21859 toponmre 21944 cldmreon 21945 iscldtop 21946 neiptopreu 21984 resttopon 22012 resttopon2 22019 restlp 22034 restperf 22035 perfopn 22036 ordtopn3 22047 ordtcld1 22048 ordtcld2 22049 ordttop 22051 lmfval 22083 cnfval 22084 cnpfval 22085 tgcn 22103 tgcnp 22104 subbascn 22105 iscnp4 22114 iscncl 22120 cncls2 22124 cncls 22125 cnntr 22126 cncnp 22131 cnindis 22143 lmcls 22153 iscnrm2 22189 ist0-2 22195 ist1-2 22198 ishaus2 22202 hausnei2 22204 isreg2 22228 sscmp 22256 dfconn2 22270 clsconn 22281 conncompcld 22285 1stccnp 22313 locfincf 22382 kgenval 22386 kgenftop 22391 1stckgenlem 22404 kgen2ss 22406 txtopon 22442 pttopon 22447 txcls 22455 ptclsg 22466 dfac14lem 22468 xkoccn 22470 txcnp 22471 ptcnplem 22472 txlm 22499 cnmpt2res 22528 cnmptkp 22531 cnmptk1 22532 cnmpt1k 22533 cnmptkk 22534 cnmptk1p 22536 cnmptk2 22537 xkoinjcn 22538 qtoptopon 22555 qtopcld 22564 qtoprest 22568 qtopcmap 22570 kqval 22577 regr1lem 22590 kqreglem1 22592 kqreglem2 22593 kqnrmlem1 22594 kqnrmlem2 22595 kqtop 22596 pt1hmeo 22657 xpstopnlem1 22660 xkohmeo 22666 neifil 22731 trnei 22743 elflim 22822 flimss1 22824 flimopn 22826 fbflim2 22828 flimcf 22833 flimclslem 22835 flffval 22840 flfnei 22842 flftg 22847 cnpflf2 22851 isfcls2 22864 fclsopn 22865 fclsnei 22870 fclscf 22876 fclscmp 22881 fcfval 22884 fcfnei 22886 cnpfcf 22892 tgpmulg2 22945 tmdgsum 22946 tmdgsum2 22947 subgntr 22958 opnsubg 22959 clssubg 22960 clsnsg 22961 cldsubg 22962 snclseqg 22967 tgphaus 22968 qustgpopn 22971 prdstgpd 22976 tsmsgsum 22990 tsmsid 22991 tgptsmscld 23002 mopntop 23292 metdseq0 23705 cnmpopc 23779 ishtpy 23823 om1val 23881 pi1val 23888 csscld 24100 clsocv 24101 relcmpcmet 24169 bcth2 24181 limcres 24737 perfdvf 24754 dvaddbr 24789 dvmulbr 24790 dvcmulf 24796 dvmptres2 24813 dvmptcmul 24815 dvmptntr 24822 dvcnvlem 24827 lhop2 24866 lhop 24867 dvcnvrelem2 24869 taylthlem1 25219 zartop 31494 neibastop2 34236 neibastop3 34237 topjoin 34240 dissneqlem 35197 istopclsd 40166 dvresntr 43077 |
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