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| Mirrors > Home > ILE Home > Th. List > tgvalex | Unicode version | ||
| Description: The topology generated by a basis is a set. (Contributed by Jim Kingdon, 4-Mar-2023.) |
| Ref | Expression |
|---|---|
| tgvalex |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | tgval 12933 |
. 2
| |
| 2 | inss1 3383 |
. . . . . . 7
| |
| 3 | 2 | unissi 3862 |
. . . . . 6
|
| 4 | sstr 3191 |
. . . . . 6
| |
| 5 | 3, 4 | mpan2 425 |
. . . . 5
|
| 6 | 5 | ss2abi 3255 |
. . . 4
|
| 7 | df-pw 3607 |
. . . 4
| |
| 8 | 6, 7 | sseqtrri 3218 |
. . 3
|
| 9 | uniexg 4474 |
. . . 4
| |
| 10 | 9 | pwexd 4214 |
. . 3
|
| 11 | ssexg 4172 |
. . 3
| |
| 12 | 8, 10, 11 | sylancr 414 |
. 2
|
| 13 | 1, 12 | eqeltrd 2273 |
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 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-13 2169 ax-14 2170 ax-ext 2178 ax-sep 4151 ax-pow 4207 ax-pr 4242 ax-un 4468 |
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1475 df-sb 1777 df-eu 2048 df-mo 2049 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-ral 2480 df-rex 2481 df-v 2765 df-sbc 2990 df-un 3161 df-in 3163 df-ss 3170 df-pw 3607 df-sn 3628 df-pr 3629 df-op 3631 df-uni 3840 df-br 4034 df-opab 4095 df-mpt 4096 df-id 4328 df-xp 4669 df-rel 4670 df-cnv 4671 df-co 4672 df-dm 4673 df-iota 5219 df-fun 5260 df-fv 5266 df-topgen 12931 |
| This theorem is referenced by: ptex 12935 mopnset 14108 tgcl 14300 tgidm 14310 tgss3 14314 2basgeng 14318 tgrest 14405 txvalex 14490 txval 14491 txbasval 14503 |
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