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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 3994 | . . 3 ⊢ (𝐴 = 𝐵 → 𝐴 ⊆ 𝐵) | |
| 2 | 1 | sspwd 4569 | . 2 ⊢ (𝐴 = 𝐵 → 𝒫 𝐴 ⊆ 𝒫 𝐵) |
| 3 | eqimss2 3995 | . . 3 ⊢ (𝐴 = 𝐵 → 𝐵 ⊆ 𝐴) | |
| 4 | 3 | sspwd 4569 | . 2 ⊢ (𝐴 = 𝐵 → 𝒫 𝐵 ⊆ 𝒫 𝐴) |
| 5 | 2, 4 | eqssd 3953 | 1 ⊢ (𝐴 = 𝐵 → 𝒫 𝐴 = 𝒫 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 𝒫 cpw 4556 |
| 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 3444 df-ss 3920 df-pw 4558 |
| This theorem is referenced by: pweqi 4572 pweqd 4573 axpweq 5298 pwexg 5325 pwssun 5524 knatar 7313 pwdom 9069 canth2g 9071 pwfi 9231 fival 9327 marypha1lem 9348 marypha1 9349 wdompwdom 9495 canthwdom 9496 r1sucg 9693 ranklim 9768 r1pwALT 9770 isacn 9966 dfac12r 10069 dfac12k 10070 pwsdompw 10125 ackbij1lem8 10148 ackbij1lem14 10154 r1om 10165 fictb 10166 isfin1a 10214 isfin2 10216 isfin3 10218 isfin3ds 10251 isf33lem 10288 domtriomlem 10364 ttukeylem1 10431 elgch 10545 wunpw 10630 wunex2 10661 wuncval2 10670 eltskg 10673 eltsk2g 10674 tskpwss 10675 tskpw 10676 inar1 10698 grupw 10718 grothpw 10749 grothpwex 10750 axgroth6 10751 grothomex 10752 grothac 10753 axdc4uz 13919 hashpw 14371 hashbc 14388 ackbijnn 15763 incexclem 15771 rami 16955 ismre 17521 isacs 17586 isacs2 17588 acsfiel 17589 isacs1i 17592 mreacs 17593 isssc 17756 acsficl 18482 efmnd 18807 pmtrfval 19391 selvffval 22088 istopg 22851 istopon 22868 eltg 22913 tgdom 22934 ntrval 22992 nrmsep3 23311 iscmp 23344 cmpcov 23345 cmpsublem 23355 cmpsub 23356 tgcmp 23357 uncmp 23359 hauscmplem 23362 is1stc 23397 2ndc1stc 23407 llyi 23430 nllyi 23431 cldllycmp 23451 isfbas 23785 isfil 23803 filss 23809 fgval 23826 elfg 23827 isufil 23859 alexsublem 24000 alexsubb 24002 alexsubALTlem1 24003 alexsubALTlem2 24004 alexsubALTlem4 24006 alexsubALT 24007 restmetu 24526 bndth 24925 ovolicc2 25491 uhgreq12g 29150 uhgr0vb 29157 isupgr 29169 isumgr 29180 isuspgr 29237 isusgr 29238 isausgr 29249 lfuhgr1v0e 29339 nbuhgr2vtx1edgblem 29436 ex-pw 30516 indv 32942 esplyval 33739 iscref 34022 sigaval 34289 issiga 34290 isrnsiga 34291 issgon 34301 isldsys 34334 issros 34353 measval 34376 isrnmeas 34378 rankpwg 36385 neibastop1 36575 neibastop2lem 36576 neibastop2 36577 neibastop3 36578 neifg 36587 limsucncmpi 36661 bj-snglex 37221 bj-ismoore 37358 pibp19 37669 pibt2 37672 cover2g 37967 isnacs 43061 mrefg2 43064 aomclem8 43418 islssfg2 43428 lnr2i 43473 pwelg 43916 fsovd 44364 fsovcnvlem 44369 dssmapfvd 44373 clsk1independent 44402 ntrneibex 44429 mnuop123d 44618 stoweidlem50 46408 stoweidlem57 46415 issal 46672 omessle 46856 grtri 48300 vsetrec 50062 elpglem3 50072 pgindnf 50075 |
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