| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > toptopon | Structured version Visualization version GIF version | ||
| Description: Alternative definition of Top in terms of TopOn. (Contributed by Mario Carneiro, 13-Aug-2015.) |
| Ref | Expression |
|---|---|
| toptopon.1 | ⊢ 𝑋 = ∪ 𝐽 |
| Ref | Expression |
|---|---|
| toptopon | ⊢ (𝐽 ∈ Top ↔ 𝐽 ∈ (TopOn‘𝑋)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | toptopon.1 | . . 3 ⊢ 𝑋 = ∪ 𝐽 | |
| 2 | istopon 22890 | . . 3 ⊢ (𝐽 ∈ (TopOn‘𝑋) ↔ (𝐽 ∈ Top ∧ 𝑋 = ∪ 𝐽)) | |
| 3 | 1, 2 | mpbiran2 711 | . 2 ⊢ (𝐽 ∈ (TopOn‘𝑋) ↔ 𝐽 ∈ Top) |
| 4 | 3 | bicomi 224 | 1 ⊢ (𝐽 ∈ Top ↔ 𝐽 ∈ (TopOn‘𝑋)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 = wceq 1542 ∈ wcel 2114 ∪ cuni 4851 ‘cfv 6493 Topctop 22871 TopOnctopon 22888 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5232 ax-nul 5242 ax-pow 5303 ax-pr 5371 ax-un 7683 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-mpt 5168 df-id 5520 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-iota 6449 df-fun 6495 df-fv 6501 df-topon 22889 |
| This theorem is referenced by: toptopon2 22896 eltpsi 22922 restuni 23140 stoig 23141 restlp 23161 restperf 23162 perfopn 23163 iscn2 23216 iscnp2 23217 cncnpi 23256 cncnp2 23259 cnnei 23260 cnrest 23263 cnpresti 23266 cnprest 23267 cnprest2 23268 paste 23272 t1sep2 23347 sshauslem 23350 1stcelcls 23439 kgenuni 23517 iskgen3 23527 txuni 23570 ptuniconst 23576 txcnmpt 23602 txcn 23604 txindis 23612 ptrescn 23617 txcmpb 23622 xkoptsub 23632 xkofvcn 23662 imasnopn 23668 imasncld 23669 imasncls 23670 qtopcmplem 23685 qtopkgen 23688 hmeof1o 23742 hmeores 23749 hmphindis 23775 cmphaushmeo 23778 txhmeo 23781 ptunhmeo 23786 hausflim 23959 flfneii 23970 hausflf 23975 flimfnfcls 24006 flfcntr 24021 cnextfun 24042 cnextfvval 24043 cnextf 24044 cnextcn 24045 cnextfres1 24046 retopon 24741 evth 24939 evth2 24940 qtophaus 33999 rrhre 34184 pconnconn 35432 connpconn 35436 pconnpi1 35438 sconnpi1 35440 txsconnlem 35441 txsconn 35442 cvmsf1o 35473 cvmliftmolem1 35482 cvmliftlem8 35493 cvmlift2lem9a 35504 cvmlift2lem9 35512 cvmlift2lem11 35514 cvmlift2lem12 35515 cvmliftphtlem 35518 cvmlift3lem6 35525 cvmlift3lem8 35527 cvmlift3lem9 35528 cnres2 38101 cnresima 38102 hausgraph 43654 ntrf2 44572 fcnre 45477 |
| Copyright terms: Public domain | W3C validator |