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| Mirrors > Home > ILE Home > Th. List > toponuni | Unicode version | ||
| Description: The base set of a topology on a given base set. (Contributed by Mario Carneiro, 13-Aug-2015.) |
| Ref | Expression |
|---|---|
| toponuni |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | istopon 15004 |
. 2
| |
| 2 | 1 | simprbi 275 |
1
|
| 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 106 ax-ia2 107 ax-ia3 108 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2207 ax-14 2208 ax-ext 2216 ax-sep 4233 ax-pow 4292 ax-pr 4327 ax-un 4559 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-rex 2528 df-rab 2531 df-v 2817 df-sbc 3046 df-un 3218 df-in 3220 df-ss 3227 df-pw 3676 df-sn 3700 df-pr 3701 df-op 3703 df-uni 3920 df-br 4115 df-opab 4177 df-mpt 4178 df-id 4419 df-xp 4760 df-rel 4761 df-cnv 4762 df-co 4763 df-dm 4764 df-iota 5317 df-fun 5359 df-fv 5365 df-topon 15002 |
| This theorem is referenced by: toponunii 15008 toponmax 15016 toponss 15017 toponcom 15018 topgele 15020 topontopn 15028 restuni 15163 resttopon2 15169 lmfval 15184 cnfval 15185 cnpfval 15186 cnprcl2k 15197 ssidcn 15201 iscnp4 15209 cnntr 15216 cncnp 15221 cnptopresti 15229 txtopon 15253 txuni 15254 cnmpt1t 15276 cnmpt2t 15284 cnmpt1res 15287 cnmpt2res 15288 mopnuni 15436 isxms2 15443 limccnp2lem 15667 limccnp2cntop 15668 dvfvalap 15672 dvbss 15676 dvfgg 15679 dvcnp2cntop 15690 dvaddxxbr 15692 dvmulxxbr 15693 |
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