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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 3992 | . . 3 ⊢ (𝐴 = 𝐵 → 𝐴 ⊆ 𝐵) | |
| 2 | 1 | sspwd 4567 | . 2 ⊢ (𝐴 = 𝐵 → 𝒫 𝐴 ⊆ 𝒫 𝐵) |
| 3 | eqimss2 3993 | . . 3 ⊢ (𝐴 = 𝐵 → 𝐵 ⊆ 𝐴) | |
| 4 | 3 | sspwd 4567 | . 2 ⊢ (𝐴 = 𝐵 → 𝒫 𝐵 ⊆ 𝒫 𝐴) |
| 5 | 2, 4 | eqssd 3951 | 1 ⊢ (𝐴 = 𝐵 → 𝒫 𝐴 = 𝒫 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1541 𝒫 cpw 4554 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2708 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1544 df-ex 1781 df-sb 2068 df-clab 2715 df-cleq 2728 df-clel 2811 df-v 3442 df-ss 3918 df-pw 4556 |
| This theorem is referenced by: pweqi 4570 pweqd 4571 axpweq 5296 pwexg 5323 pwssun 5516 knatar 7303 pwdom 9057 canth2g 9059 pwfi 9219 fival 9315 marypha1lem 9336 marypha1 9337 wdompwdom 9483 canthwdom 9484 r1sucg 9681 ranklim 9756 r1pwALT 9758 isacn 9954 dfac12r 10057 dfac12k 10058 pwsdompw 10113 ackbij1lem8 10136 ackbij1lem14 10142 r1om 10153 fictb 10154 isfin1a 10202 isfin2 10204 isfin3 10206 isfin3ds 10239 isf33lem 10276 domtriomlem 10352 ttukeylem1 10419 elgch 10533 wunpw 10618 wunex2 10649 wuncval2 10658 eltskg 10661 eltsk2g 10662 tskpwss 10663 tskpw 10664 inar1 10686 grupw 10706 grothpw 10737 grothpwex 10738 axgroth6 10739 grothomex 10740 grothac 10741 axdc4uz 13907 hashpw 14359 hashbc 14376 ackbijnn 15751 incexclem 15759 rami 16943 ismre 17509 isacs 17574 isacs2 17576 acsfiel 17577 isacs1i 17580 mreacs 17581 isssc 17744 acsficl 18470 efmnd 18795 pmtrfval 19379 selvffval 22076 istopg 22839 istopon 22856 eltg 22901 tgdom 22922 ntrval 22980 nrmsep3 23299 iscmp 23332 cmpcov 23333 cmpsublem 23343 cmpsub 23344 tgcmp 23345 uncmp 23347 hauscmplem 23350 is1stc 23385 2ndc1stc 23395 llyi 23418 nllyi 23419 cldllycmp 23439 isfbas 23773 isfil 23791 filss 23797 fgval 23814 elfg 23815 isufil 23847 alexsublem 23988 alexsubb 23990 alexsubALTlem1 23991 alexsubALTlem2 23992 alexsubALTlem4 23994 alexsubALT 23995 restmetu 24514 bndth 24913 ovolicc2 25479 uhgreq12g 29138 uhgr0vb 29145 isupgr 29157 isumgr 29168 isuspgr 29225 isusgr 29226 isausgr 29237 lfuhgr1v0e 29327 nbuhgr2vtx1edgblem 29424 ex-pw 30504 indv 32931 esplyval 33720 iscref 34001 sigaval 34268 issiga 34269 isrnsiga 34270 issgon 34280 isldsys 34313 issros 34332 measval 34355 isrnmeas 34357 rankpwg 36363 neibastop1 36553 neibastop2lem 36554 neibastop2 36555 neibastop3 36556 neifg 36565 limsucncmpi 36639 bj-snglex 37174 bj-ismoore 37310 pibp19 37619 pibt2 37622 cover2g 37917 isnacs 42946 mrefg2 42949 aomclem8 43303 islssfg2 43313 lnr2i 43358 pwelg 43801 fsovd 44249 fsovcnvlem 44254 dssmapfvd 44258 clsk1independent 44287 ntrneibex 44314 mnuop123d 44503 stoweidlem50 46294 stoweidlem57 46301 issal 46558 omessle 46742 grtri 48186 vsetrec 49948 elpglem3 49958 pgindnf 49961 |
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