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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 14727 |
. 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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-sep 4205 ax-pow 4262 ax-pr 4297 ax-un 4528 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-rab 2517 df-v 2802 df-sbc 3030 df-un 3202 df-in 3204 df-ss 3211 df-pw 3652 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3892 df-br 4087 df-opab 4149 df-mpt 4150 df-id 4388 df-xp 4729 df-rel 4730 df-cnv 4731 df-co 4732 df-dm 4733 df-iota 5284 df-fun 5326 df-fv 5332 df-topon 14725 |
| This theorem is referenced by: toponunii 14731 toponmax 14739 toponss 14740 toponcom 14741 topgele 14743 topontopn 14751 restuni 14886 resttopon2 14892 lmfval 14907 cnfval 14908 cnpfval 14909 cnprcl2k 14920 ssidcn 14924 iscnp4 14932 cnntr 14939 cncnp 14944 cnptopresti 14952 txtopon 14976 txuni 14977 cnmpt1t 14999 cnmpt2t 15007 cnmpt1res 15010 cnmpt2res 15011 mopnuni 15159 isxms2 15166 limccnp2lem 15390 limccnp2cntop 15391 dvfvalap 15395 dvbss 15399 dvfgg 15402 dvcnp2cntop 15413 dvaddxxbr 15415 dvmulxxbr 15416 |
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