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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 3989 | . . 3 ⊢ (𝐴 = 𝐵 → 𝐴 ⊆ 𝐵) | |
| 2 | 1 | sspwd 4564 | . 2 ⊢ (𝐴 = 𝐵 → 𝒫 𝐴 ⊆ 𝒫 𝐵) |
| 3 | eqimss2 3990 | . . 3 ⊢ (𝐴 = 𝐵 → 𝐵 ⊆ 𝐴) | |
| 4 | 3 | sspwd 4564 | . 2 ⊢ (𝐴 = 𝐵 → 𝒫 𝐵 ⊆ 𝒫 𝐴) |
| 5 | 2, 4 | eqssd 3948 | 1 ⊢ (𝐴 = 𝐵 → 𝒫 𝐴 = 𝒫 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1541 𝒫 cpw 4551 |
| 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 2705 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1544 df-ex 1781 df-sb 2068 df-clab 2712 df-cleq 2725 df-clel 2808 df-v 3439 df-ss 3915 df-pw 4553 |
| This theorem is referenced by: pweqi 4567 pweqd 4568 axpweq 5293 pwexg 5320 pwssun 5513 knatar 7300 pwdom 9053 canth2g 9055 pwfi 9214 fival 9307 marypha1lem 9328 marypha1 9329 wdompwdom 9475 canthwdom 9476 r1sucg 9673 ranklim 9748 r1pwALT 9750 isacn 9946 dfac12r 10049 dfac12k 10050 pwsdompw 10105 ackbij1lem8 10128 ackbij1lem14 10134 r1om 10145 fictb 10146 isfin1a 10194 isfin2 10196 isfin3 10198 isfin3ds 10231 isf33lem 10268 domtriomlem 10344 ttukeylem1 10411 elgch 10524 wunpw 10609 wunex2 10640 wuncval2 10649 eltskg 10652 eltsk2g 10653 tskpwss 10654 tskpw 10655 inar1 10677 grupw 10697 grothpw 10728 grothpwex 10729 axgroth6 10730 grothomex 10731 grothac 10732 axdc4uz 13898 hashpw 14350 hashbc 14367 ackbijnn 15742 incexclem 15750 rami 16934 ismre 17500 isacs 17565 isacs2 17567 acsfiel 17568 isacs1i 17571 mreacs 17572 isssc 17735 acsficl 18461 efmnd 18786 pmtrfval 19370 selvffval 22067 istopg 22830 istopon 22847 eltg 22892 tgdom 22913 ntrval 22971 nrmsep3 23290 iscmp 23323 cmpcov 23324 cmpsublem 23334 cmpsub 23335 tgcmp 23336 uncmp 23338 hauscmplem 23341 is1stc 23376 2ndc1stc 23386 llyi 23409 nllyi 23410 cldllycmp 23430 isfbas 23764 isfil 23782 filss 23788 fgval 23805 elfg 23806 isufil 23838 alexsublem 23979 alexsubb 23981 alexsubALTlem1 23982 alexsubALTlem2 23983 alexsubALTlem4 23985 alexsubALT 23986 restmetu 24505 bndth 24904 ovolicc2 25470 uhgreq12g 29064 uhgr0vb 29071 isupgr 29083 isumgr 29094 isuspgr 29151 isusgr 29152 isausgr 29163 lfuhgr1v0e 29253 nbuhgr2vtx1edgblem 29350 ex-pw 30430 indv 32859 esplyval 33648 iscref 33929 sigaval 34196 issiga 34197 isrnsiga 34198 issgon 34208 isldsys 34241 issros 34260 measval 34283 isrnmeas 34285 rankpwg 36285 neibastop1 36475 neibastop2lem 36476 neibastop2 36477 neibastop3 36478 neifg 36487 limsucncmpi 36561 bj-snglex 37090 bj-ismoore 37222 pibp19 37531 pibt2 37534 cover2g 37829 isnacs 42861 mrefg2 42864 aomclem8 43218 islssfg2 43228 lnr2i 43273 pwelg 43717 fsovd 44165 fsovcnvlem 44170 dssmapfvd 44174 clsk1independent 44203 ntrneibex 44230 mnuop123d 44419 stoweidlem50 46210 stoweidlem57 46217 issal 46474 omessle 46658 grtri 48102 vsetrec 49864 elpglem3 49874 pgindnf 49877 |
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