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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 14739 |
. 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-un 4530 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-rab 2519 df-v 2804 df-sbc 3032 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-opab 4151 df-mpt 4152 df-id 4390 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-iota 5286 df-fun 5328 df-fv 5334 df-topon 14737 |
| This theorem is referenced by: toponunii 14743 toponmax 14751 toponss 14752 toponcom 14753 topgele 14755 topontopn 14763 restuni 14898 resttopon2 14904 lmfval 14919 cnfval 14920 cnpfval 14921 cnprcl2k 14932 ssidcn 14936 iscnp4 14944 cnntr 14951 cncnp 14956 cnptopresti 14964 txtopon 14988 txuni 14989 cnmpt1t 15011 cnmpt2t 15019 cnmpt1res 15022 cnmpt2res 15023 mopnuni 15171 isxms2 15178 limccnp2lem 15402 limccnp2cntop 15403 dvfvalap 15407 dvbss 15411 dvfgg 15414 dvcnp2cntop 15425 dvaddxxbr 15427 dvmulxxbr 15428 |
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