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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 5288 pwexg 5315 pwssun 5516 knatar 7305 pwdom 9060 canth2g 9062 pwfi 9222 fival 9318 marypha1lem 9339 marypha1 9340 wdompwdom 9486 canthwdom 9487 r1sucg 9684 ranklim 9759 r1pwALT 9761 isacn 9957 dfac12r 10060 dfac12k 10061 pwsdompw 10116 ackbij1lem8 10139 ackbij1lem14 10145 r1om 10156 fictb 10157 isfin1a 10205 isfin2 10207 isfin3 10209 isfin3ds 10242 isf33lem 10279 domtriomlem 10355 ttukeylem1 10422 elgch 10536 wunpw 10621 wunex2 10652 wuncval2 10661 eltskg 10664 eltsk2g 10665 tskpwss 10666 tskpw 10667 inar1 10689 grupw 10709 grothpw 10740 grothpwex 10741 axgroth6 10742 grothomex 10743 grothac 10744 indv 12152 axdc4uz 13937 hashpw 14389 hashbc 14406 ackbijnn 15784 incexclem 15792 rami 16977 ismre 17543 isacs 17608 isacs2 17610 acsfiel 17611 isacs1i 17614 mreacs 17615 isssc 17778 acsficl 18504 efmnd 18829 pmtrfval 19416 selvffval 22109 istopg 22870 istopon 22887 eltg 22932 tgdom 22953 ntrval 23011 nrmsep3 23330 iscmp 23363 cmpcov 23364 cmpsublem 23374 cmpsub 23375 tgcmp 23376 uncmp 23378 hauscmplem 23381 is1stc 23416 2ndc1stc 23426 llyi 23449 nllyi 23450 cldllycmp 23470 isfbas 23804 isfil 23822 filss 23828 fgval 23845 elfg 23846 isufil 23878 alexsublem 24019 alexsubb 24021 alexsubALTlem1 24022 alexsubALTlem2 24023 alexsubALTlem4 24025 alexsubALT 24026 restmetu 24545 bndth 24935 ovolicc2 25499 uhgreq12g 29148 uhgr0vb 29155 isupgr 29167 isumgr 29178 isuspgr 29235 isusgr 29236 isausgr 29247 lfuhgr1v0e 29337 nbuhgr2vtx1edgblem 29434 ex-pw 30514 esplyval 33721 iscref 34004 sigaval 34271 issiga 34272 isrnsiga 34273 issgon 34283 isldsys 34316 issros 34335 measval 34358 isrnmeas 34360 rankpwg 36367 neibastop1 36557 neibastop2lem 36558 neibastop2 36559 neibastop3 36560 neifg 36569 limsucncmpi 36643 bj-snglex 37296 bj-ismoore 37433 pibp19 37744 pibt2 37747 cover2g 38051 isnacs 43150 mrefg2 43153 aomclem8 43507 islssfg2 43517 lnr2i 43562 pwelg 44005 fsovd 44453 fsovcnvlem 44458 dssmapfvd 44462 clsk1independent 44491 ntrneibex 44518 mnuop123d 44707 stoweidlem50 46496 stoweidlem57 46503 issal 46760 omessle 46944 grtri 48428 vsetrec 50190 elpglem3 50200 pgindnf 50203 |
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