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| Mirrors > Home > MPE Home > Th. List > pweq | Structured version Visualization version GIF version | ||
| Description: Equality theorem for power class. (Contributed by NM, 21-Jun-1993.) (Proof shortened by BJ, 13-Apr-2024.) |
| Ref | Expression |
|---|---|
| pweq | ⊢ (𝐴 = 𝐵 → 𝒫 𝐴 = 𝒫 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqimss 3981 | . . 3 ⊢ (𝐴 = 𝐵 → 𝐴 ⊆ 𝐵) | |
| 2 | 1 | sspwd 4555 | . 2 ⊢ (𝐴 = 𝐵 → 𝒫 𝐴 ⊆ 𝒫 𝐵) |
| 3 | eqimss2 3982 | . . 3 ⊢ (𝐴 = 𝐵 → 𝐵 ⊆ 𝐴) | |
| 4 | 3 | sspwd 4555 | . 2 ⊢ (𝐴 = 𝐵 → 𝒫 𝐵 ⊆ 𝒫 𝐴) |
| 5 | 2, 4 | eqssd 3940 | 1 ⊢ (𝐴 = 𝐵 → 𝒫 𝐴 = 𝒫 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 𝒫 cpw 4542 |
| 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-ext 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1545 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-v 3432 df-ss 3907 df-pw 4544 |
| This theorem is referenced by: pweqi 4558 pweqd 4559 axpweq 5286 pwexg 5313 pwssun 5514 knatar 7303 pwdom 9058 canth2g 9060 pwfi 9220 fival 9316 marypha1lem 9337 marypha1 9338 wdompwdom 9484 canthwdom 9485 r1sucg 9682 ranklim 9757 r1pwALT 9759 isacn 9955 dfac12r 10058 dfac12k 10059 pwsdompw 10114 ackbij1lem8 10137 ackbij1lem14 10143 r1om 10154 fictb 10155 isfin1a 10203 isfin2 10205 isfin3 10207 isfin3ds 10240 isf33lem 10277 domtriomlem 10353 ttukeylem1 10420 elgch 10534 wunpw 10619 wunex2 10650 wuncval2 10659 eltskg 10662 eltsk2g 10663 tskpwss 10664 tskpw 10665 inar1 10687 grupw 10707 grothpw 10738 grothpwex 10739 axgroth6 10740 grothomex 10741 grothac 10742 indv 12150 axdc4uz 13935 hashpw 14387 hashbc 14404 ackbijnn 15782 incexclem 15790 rami 16975 ismre 17541 isacs 17606 isacs2 17608 acsfiel 17609 isacs1i 17612 mreacs 17613 isssc 17776 acsficl 18502 efmnd 18827 pmtrfval 19414 selvffval 22108 istopg 22869 istopon 22886 eltg 22931 tgdom 22952 ntrval 23010 nrmsep3 23329 iscmp 23362 cmpcov 23363 cmpsublem 23373 cmpsub 23374 tgcmp 23375 uncmp 23377 hauscmplem 23380 is1stc 23415 2ndc1stc 23425 llyi 23448 nllyi 23449 cldllycmp 23469 isfbas 23803 isfil 23821 filss 23827 fgval 23844 elfg 23845 isufil 23877 alexsublem 24018 alexsubb 24020 alexsubALTlem1 24021 alexsubALTlem2 24022 alexsubALTlem4 24024 alexsubALT 24025 restmetu 24544 bndth 24934 ovolicc2 25498 uhgreq12g 29153 uhgr0vb 29160 isupgr 29172 isumgr 29183 isuspgr 29240 isusgr 29241 isausgr 29252 lfuhgr1v0e 29342 nbuhgr2vtx1edgblem 29439 ex-pw 30519 esplyval 33726 iscref 34009 sigaval 34276 issiga 34277 isrnsiga 34278 issgon 34288 isldsys 34321 issros 34340 measval 34363 isrnmeas 34365 rankpwg 36372 neibastop1 36562 neibastop2lem 36563 neibastop2 36564 neibastop3 36565 neifg 36574 limsucncmpi 36648 bj-snglex 37293 bj-ismoore 37430 pibp19 37741 pibt2 37744 cover2g 38048 isnacs 43147 mrefg2 43150 aomclem8 43504 islssfg2 43514 lnr2i 43559 pwelg 44002 fsovd 44450 fsovcnvlem 44455 dssmapfvd 44459 clsk1independent 44488 ntrneibex 44515 mnuop123d 44704 stoweidlem50 46493 stoweidlem57 46500 issal 46757 omessle 46941 grtri 48413 vsetrec 50175 elpglem3 50185 pgindnf 50188 |
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