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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 15037 |
. 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 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4244 ax-pow 4306 ax-pr 4341 ax-un 4573 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-sbc 3052 df-un 3224 df-in 3226 df-ss 3233 df-pw 3687 df-sn 3711 df-pr 3712 df-op 3714 df-uni 3931 df-br 4126 df-opab 4188 df-mpt 4189 df-id 4433 df-xp 4775 df-rel 4776 df-cnv 4777 df-co 4778 df-dm 4779 df-iota 5332 df-fun 5374 df-fv 5380 df-topon 15035 |
| This theorem is referenced by: toponunii 15041 toponmax 15049 toponss 15050 toponcom 15051 topgele 15053 topontopn 15061 restuni 15196 resttopon2 15202 lmfval 15217 cnfval 15218 cnpfval 15219 cnprcl2k 15230 ssidcn 15234 iscnp4 15242 cnntr 15249 cncnp 15254 cnptopresti 15262 txtopon 15286 txuni 15287 cnmpt1t 15309 cnmpt2t 15317 cnmpt1res 15320 cnmpt2res 15321 mopnuni 15469 isxms2 15476 limccnp2lem 15700 limccnp2cntop 15701 dvfvalap 15705 dvbss 15709 dvfgg 15712 dvcnp2cntop 15723 dvaddxxbr 15725 dvmulxxbr 15726 |
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