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Mirrors > Home > ILE Home > Th. List > topontop | Unicode version |
Description: A topology on a given base set is a topology. (Contributed by Mario Carneiro, 13-Aug-2015.) |
Ref | Expression |
---|---|
topontop |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | istopon 12219 |
. 2
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2 | 1 | simplbi 272 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-13 1492 ax-14 1493 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 ax-sep 4054 ax-pow 4106 ax-pr 4139 ax-un 4363 |
This theorem depends on definitions: df-bi 116 df-3an 965 df-tru 1335 df-nf 1438 df-sb 1737 df-eu 2003 df-mo 2004 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-ral 2422 df-rex 2423 df-rab 2426 df-v 2691 df-sbc 2914 df-un 3080 df-in 3082 df-ss 3089 df-pw 3517 df-sn 3538 df-pr 3539 df-op 3541 df-uni 3745 df-br 3938 df-opab 3998 df-mpt 3999 df-id 4223 df-xp 4553 df-rel 4554 df-cnv 4555 df-co 4556 df-dm 4557 df-iota 5096 df-fun 5133 df-fv 5139 df-topon 12217 |
This theorem is referenced by: topontopi 12222 topontopon 12226 toponmax 12231 topgele 12235 istps 12238 topontopn 12243 resttopon 12379 resttopon2 12386 lmfval 12400 cnfval 12402 cnpfval 12403 cnprcl2k 12414 cnpf2 12415 tgcn 12416 tgcnp 12417 iscnp4 12426 cnntr 12433 cncnp 12438 cnptopresti 12446 txtopon 12470 txcnp 12479 txlm 12487 cnmpt2res 12505 mopntop 12652 metcnpi 12723 metcnpi3 12725 dvfvalap 12858 dvfgg 12865 dvaddxxbr 12873 dvmulxxbr 12874 |
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