Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > elpw2g | Structured version Visualization version GIF version |
Description: Membership in a power class. Theorem 86 of [Suppes] p. 47. (Contributed by NM, 7-Aug-2000.) |
Ref | Expression |
---|---|
elpw2g | ⊢ (𝐵 ∈ 𝑉 → (𝐴 ∈ 𝒫 𝐵 ↔ 𝐴 ⊆ 𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elpwi 4548 | . 2 ⊢ (𝐴 ∈ 𝒫 𝐵 → 𝐴 ⊆ 𝐵) | |
2 | ssexg 5227 | . . . 4 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ∈ 𝑉) → 𝐴 ∈ V) | |
3 | elpwg 4542 | . . . . 5 ⊢ (𝐴 ∈ V → (𝐴 ∈ 𝒫 𝐵 ↔ 𝐴 ⊆ 𝐵)) | |
4 | 3 | biimparc 482 | . . . 4 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐴 ∈ V) → 𝐴 ∈ 𝒫 𝐵) |
5 | 2, 4 | syldan 593 | . . 3 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ∈ 𝑉) → 𝐴 ∈ 𝒫 𝐵) |
6 | 5 | expcom 416 | . 2 ⊢ (𝐵 ∈ 𝑉 → (𝐴 ⊆ 𝐵 → 𝐴 ∈ 𝒫 𝐵)) |
7 | 1, 6 | impbid2 228 | 1 ⊢ (𝐵 ∈ 𝑉 → (𝐴 ∈ 𝒫 𝐵 ↔ 𝐴 ⊆ 𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 208 ∈ wcel 2114 Vcvv 3494 ⊆ wss 3936 𝒫 cpw 4539 |
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 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-sep 5203 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-rab 3147 df-v 3496 df-in 3943 df-ss 3952 df-pw 4541 |
This theorem is referenced by: elpw2 5248 elpwi2 5249 pwnss 5250 difelpw 5252 rabelpw 5253 pw2f1olem 8621 fineqvlem 8732 elfir 8879 r1sscl 9214 tskwe 9379 dfac8alem 9455 acni2 9472 fin1ai 9715 fin2i 9717 fin23lem7 9738 fin23lem11 9739 isfin2-2 9741 fin23lem39 9772 isf34lem1 9794 isf34lem2 9795 isf34lem4 9799 isf34lem5 9800 fin1a2lem12 9833 canthnumlem 10070 tsken 10176 tskss 10180 gruss 10218 ismre 16861 mreintcl 16866 mremre 16875 submre 16876 mrcval 16881 mrccl 16882 mrcun 16893 ismri 16902 acsfiel 16925 isacs1i 16928 catcoppccl 17368 acsdrsel 17777 acsdrscl 17780 acsficl 17781 pmtrval 18579 pmtrrn 18585 istopg 21503 uniopn 21505 iscld 21635 ntrval 21644 clsval 21645 discld 21697 mretopd 21700 neival 21710 isnei 21711 lpval 21747 restdis 21786 ordtbaslem 21796 ordtuni 21798 cndis 21899 tgcmp 22009 hauscmplem 22014 comppfsc 22140 elkgen 22144 xkoopn 22197 elqtop 22305 kqffn 22333 isfbas 22437 filss 22461 snfbas 22474 elfg 22479 ufilss 22513 fixufil 22530 cfinufil 22536 ufinffr 22537 ufilen 22538 fin1aufil 22540 flimclslem 22592 hauspwpwf1 22595 supnfcls 22628 flimfnfcls 22636 ptcmplem1 22660 tsmsfbas 22736 blfvalps 22993 blfps 23016 blf 23017 bcthlem5 23931 minveclem3b 24031 sigaclcuni 31377 sigaclcu2 31379 pwsiga 31389 erdsze2lem2 32451 cvmsval 32513 cvmsss2 32521 neibastop2lem 33708 tailf 33723 pibt2 34701 fin2so 34894 sdclem1 35033 elrfirn 39312 elrfirn2 39313 istopclsd 39317 nacsfix 39329 dnnumch1 39664 |
Copyright terms: Public domain | W3C validator |