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| Mirrors > Home > ILE Home > Th. List > istps | Unicode version | ||
| Description: Express the predicate "is a topological space". (Contributed by Mario Carneiro, 13-Aug-2015.) |
| Ref | Expression |
|---|---|
| istps.a |
|
| istps.j |
|
| Ref | Expression |
|---|---|
| istps |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-topsp 14267 |
. . 3
| |
| 2 | 1 | eleq2i 2263 |
. 2
|
| 3 | topontop 14250 |
. . . 4
| |
| 4 | topnfn 12915 |
. . . . . . 7
| |
| 5 | fnrel 5356 |
. . . . . . 7
| |
| 6 | 4, 5 | ax-mp 5 |
. . . . . 6
|
| 7 | 0opn 14242 |
. . . . . . 7
| |
| 8 | istps.j |
. . . . . . 7
| |
| 9 | 7, 8 | eleqtrdi 2289 |
. . . . . 6
|
| 10 | relelfvdm 5590 |
. . . . . 6
| |
| 11 | 6, 9, 10 | sylancr 414 |
. . . . 5
|
| 12 | 11 | elexd 2776 |
. . . 4
|
| 13 | 3, 12 | syl 14 |
. . 3
|
| 14 | fveq2 5558 |
. . . . 5
| |
| 15 | 14, 8 | eqtr4di 2247 |
. . . 4
|
| 16 | fveq2 5558 |
. . . . . 6
| |
| 17 | istps.a |
. . . . . 6
| |
| 18 | 16, 17 | eqtr4di 2247 |
. . . . 5
|
| 19 | 18 | fveq2d 5562 |
. . . 4
|
| 20 | 15, 19 | eleq12d 2267 |
. . 3
|
| 21 | 13, 20 | elab3 2916 |
. 2
|
| 22 | 2, 21 | bitri 184 |
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-in1 615 ax-in2 616 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-coll 4148 ax-sep 4151 ax-pow 4207 ax-pr 4242 ax-un 4468 ax-cnex 7970 ax-resscn 7971 ax-1re 7973 ax-addrcl 7976 |
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-fal 1370 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-reu 2482 df-rab 2484 df-v 2765 df-sbc 2990 df-csb 3085 df-dif 3159 df-un 3161 df-in 3163 df-ss 3170 df-nul 3451 df-pw 3607 df-sn 3628 df-pr 3629 df-op 3631 df-uni 3840 df-int 3875 df-iun 3918 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-rn 4674 df-res 4675 df-ima 4676 df-iota 5219 df-fun 5260 df-fn 5261 df-f 5262 df-f1 5263 df-fo 5264 df-f1o 5265 df-fv 5266 df-ov 5925 df-oprab 5926 df-mpo 5927 df-1st 6198 df-2nd 6199 df-inn 8991 df-2 9049 df-3 9050 df-4 9051 df-5 9052 df-6 9053 df-7 9054 df-8 9055 df-9 9056 df-ndx 12681 df-slot 12682 df-base 12684 df-tset 12774 df-rest 12912 df-topn 12913 df-top 14234 df-topon 14247 df-topsp 14267 |
| This theorem is referenced by: istps2 14269 tpspropd 14272 tsettps 14274 isxms2 14688 cnfldtopon 14776 |
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