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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 21523 | . . 3 ⊢ (𝐽 ∈ (TopOn‘𝑋) ↔ (𝐽 ∈ Top ∧ 𝑋 = ∪ 𝐽)) | |
3 | 1, 2 | mpbiran2 708 | . 2 ⊢ (𝐽 ∈ (TopOn‘𝑋) ↔ 𝐽 ∈ Top) |
4 | 3 | bicomi 226 | 1 ⊢ (𝐽 ∈ Top ↔ 𝐽 ∈ (TopOn‘𝑋)) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 208 = wceq 1536 ∈ wcel 2113 ∪ cuni 4841 ‘cfv 6358 Topctop 21504 TopOnctopon 21521 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1969 ax-7 2014 ax-8 2115 ax-9 2123 ax-10 2144 ax-11 2160 ax-12 2176 ax-ext 2796 ax-sep 5206 ax-nul 5213 ax-pow 5269 ax-pr 5333 ax-un 7464 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1539 df-ex 1780 df-nf 1784 df-sb 2069 df-mo 2621 df-eu 2653 df-clab 2803 df-cleq 2817 df-clel 2896 df-nfc 2966 df-ral 3146 df-rex 3147 df-rab 3150 df-v 3499 df-sbc 3776 df-dif 3942 df-un 3944 df-in 3946 df-ss 3955 df-nul 4295 df-if 4471 df-pw 4544 df-sn 4571 df-pr 4573 df-op 4577 df-uni 4842 df-br 5070 df-opab 5132 df-mpt 5150 df-id 5463 df-xp 5564 df-rel 5565 df-cnv 5566 df-co 5567 df-dm 5568 df-iota 6317 df-fun 6360 df-fv 6366 df-topon 21522 |
This theorem is referenced by: toptopon2 21529 eltpsi 21555 restuni 21773 stoig 21774 restlp 21794 restperf 21795 perfopn 21796 iscn2 21849 iscnp2 21850 cncnpi 21889 cncnp2 21892 cnnei 21893 cnrest 21896 cnpresti 21899 cnprest 21900 cnprest2 21901 paste 21905 t1sep2 21980 sshauslem 21983 1stcelcls 22072 kgenuni 22150 iskgen3 22160 txuni 22203 ptuniconst 22209 txcnmpt 22235 txcn 22237 txindis 22245 ptrescn 22250 txcmpb 22255 xkoptsub 22265 xkofvcn 22295 imasnopn 22301 imasncld 22302 imasncls 22303 qtopcmplem 22318 qtopkgen 22321 hmeof1o 22375 hmeores 22382 hmphindis 22408 cmphaushmeo 22411 txhmeo 22414 ptunhmeo 22419 hausflim 22592 flfneii 22603 hausflf 22608 flimfnfcls 22639 flfcntr 22654 cnextfun 22675 cnextfvval 22676 cnextf 22677 cnextcn 22678 cnextfres1 22679 retopon 23375 evth 23566 evth2 23567 qtophaus 31104 rrhre 31266 pconnconn 32482 connpconn 32486 pconnpi1 32488 sconnpi1 32490 txsconnlem 32491 txsconn 32492 cvxsconn 32494 cvmsf1o 32523 cvmliftmolem1 32532 cvmliftlem8 32543 cvmlift2lem9a 32554 cvmlift2lem9 32562 cvmlift2lem11 32564 cvmlift2lem12 32565 cvmliftphtlem 32568 cvmlift3lem6 32575 cvmlift3lem8 32577 cvmlift3lem9 32578 cnres2 35045 cnresima 35046 hausgraph 39818 ntrf2 40480 fcnre 41288 |
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