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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.) |
Ref | Expression |
---|---|
pweq | ⊢ (𝐴 = 𝐵 → 𝒫 𝐴 = 𝒫 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sseq2 3590 | . . 3 ⊢ (𝐴 = 𝐵 → (𝑥 ⊆ 𝐴 ↔ 𝑥 ⊆ 𝐵)) | |
2 | 1 | abbidv 2728 | . 2 ⊢ (𝐴 = 𝐵 → {𝑥 ∣ 𝑥 ⊆ 𝐴} = {𝑥 ∣ 𝑥 ⊆ 𝐵}) |
3 | df-pw 4110 | . 2 ⊢ 𝒫 𝐴 = {𝑥 ∣ 𝑥 ⊆ 𝐴} | |
4 | df-pw 4110 | . 2 ⊢ 𝒫 𝐵 = {𝑥 ∣ 𝑥 ⊆ 𝐵} | |
5 | 2, 3, 4 | 3eqtr4g 2669 | 1 ⊢ (𝐴 = 𝐵 → 𝒫 𝐴 = 𝒫 𝐵) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1475 {cab 2596 ⊆ wss 3540 𝒫 cpw 4108 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-in 3547 df-ss 3554 df-pw 4110 |
This theorem is referenced by: pweqi 4112 pweqd 4113 axpweq 4768 pwex 4774 pwexg 4776 pwssun 4944 knatar 6507 pwdom 7997 canth2g 7999 pwfi 8144 fival 8201 marypha1lem 8222 marypha1 8223 wdompwdom 8366 canthwdom 8367 r1sucg 8515 ranklim 8590 r1pwALT 8592 isacn 8750 dfac12r 8851 dfac12k 8852 pwsdompw 8909 ackbij1lem5 8929 ackbij1lem8 8932 ackbij1lem14 8938 r1om 8949 fictb 8950 isfin1a 8997 isfin2 8999 isfin3 9001 isfin3ds 9034 isf33lem 9071 domtriomlem 9147 ttukeylem1 9214 elgch 9323 wunpw 9408 wunex2 9439 wuncval2 9448 eltskg 9451 eltsk2g 9452 tskpwss 9453 tskpw 9454 inar1 9476 grupw 9496 grothpw 9527 grothpwex 9528 axgroth6 9529 grothomex 9530 grothac 9531 axdc4uz 12645 hashpw 13083 hashbc 13094 ackbijnn 14399 incexclem 14407 rami 15557 ismre 16073 isacs 16135 isacs2 16137 acsfiel 16138 isacs1i 16141 mreacs 16142 isssc 16303 acsficl 16994 pmtrfval 17693 istopg 20525 istopon 20540 eltg 20572 tgdom 20593 ntrval 20650 nrmsep3 20969 iscmp 21001 cmpcov 21002 cmpsublem 21012 cmpsub 21013 tgcmp 21014 uncmp 21016 hauscmplem 21019 is1stc 21054 2ndc1stc 21064 llyi 21087 nllyi 21088 cldllycmp 21108 isfbas 21443 isfil 21461 filss 21467 fgval 21484 elfg 21485 isufil 21517 alexsublem 21658 alexsubb 21660 alexsubALTlem1 21661 alexsubALTlem2 21662 alexsubALTlem4 21664 alexsubALT 21665 restmetu 22185 bndth 22565 ovolicc2 23097 uhgreq12g 25731 uhgr0vb 25738 isupgr 25751 isumgr 25761 isuhgra 25827 isushgra 25830 uhgrac 25834 uhgraeq12d 25836 isausgra 25883 usgraeq12d 25891 ex-pw 26678 iscref 29239 indv 29402 sigaval 29500 issiga 29501 isrnsigaOLD 29502 isrnsiga 29503 issgon 29513 isldsys 29546 issros 29565 measval 29588 isrnmeas 29590 rankpwg 31446 neibastop1 31524 neibastop2lem 31525 neibastop2 31526 neibastop3 31527 neifg 31536 limsucncmpi 31614 bj-snglex 32154 cover2g 32679 isnacs 36285 mrefg2 36288 aomclem8 36649 islssfg2 36659 lnr2i 36705 pwelg 36884 fsovd 37322 fsovcnvlem 37327 dssmapfvd 37331 clsk1independent 37364 ntrneibex 37391 stoweidlem50 38943 stoweidlem57 38950 issal 39210 omessle 39388 uhgruhgra 40375 uhgrauhgr 40376 isuspgr 40382 isusgr 40383 isausgr 40394 lfuhgr1v0e 40480 usgrexmpl 40487 nbuhgr2vtx1edgblem 40573 vsetrec 42245 elpglem3 42255 |
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