| 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 4562 | . 2 ⊢ (𝐴 ∈ 𝒫 𝐵 → 𝐴 ⊆ 𝐵) | |
| 2 | ssexg 5269 | . . . 4 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ∈ 𝑉) → 𝐴 ∈ V) | |
| 3 | elpwg 4558 | . . . . 5 ⊢ (𝐴 ∈ V → (𝐴 ∈ 𝒫 𝐵 ↔ 𝐴 ⊆ 𝐵)) | |
| 4 | 3 | biimparc 479 | . . . 4 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐴 ∈ V) → 𝐴 ∈ 𝒫 𝐵) |
| 5 | 2, 4 | syldan 592 | . . 3 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ∈ 𝑉) → 𝐴 ∈ 𝒫 𝐵) |
| 6 | 5 | expcom 413 | . 2 ⊢ (𝐵 ∈ 𝑉 → (𝐴 ⊆ 𝐵 → 𝐴 ∈ 𝒫 𝐵)) |
| 7 | 1, 6 | impbid2 226 | 1 ⊢ (𝐵 ∈ 𝑉 → (𝐴 ∈ 𝒫 𝐵 ↔ 𝐴 ⊆ 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∈ wcel 2114 Vcvv 3441 ⊆ wss 3902 𝒫 cpw 4555 |
| 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 ax-sep 5242 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-3an 1089 df-tru 1545 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-rab 3401 df-v 3443 df-in 3909 df-ss 3919 df-pw 4557 |
| This theorem is referenced by: elpw2 5280 rabelpw 5282 difelpw 5300 pw2f1olem 9013 fineqvlem 9170 elfir 9322 r1sscl 9701 tskwe 9866 dfac8alem 9943 acni2 9960 fin1ai 10207 fin2i 10209 fin23lem7 10230 fin23lem11 10231 isfin2-2 10233 fin23lem39 10264 isf34lem1 10286 isf34lem2 10287 isf34lem4 10291 isf34lem5 10292 fin1a2lem12 10325 canthnumlem 10563 tsken 10669 tskss 10673 gruss 10711 ismre 17513 mreintcl 17518 mremre 17527 submre 17528 mrcval 17537 mrccl 17538 mrcun 17549 ismri 17558 acsfiel 17581 isacs1i 17584 catcoppccl 18045 acsdrsel 18470 acsdrscl 18473 acsficl 18474 pmtrval 19384 pmtrrn 19390 istopg 22843 uniopn 22845 iscld 22975 ntrval 22984 clsval 22985 discld 23037 mretopd 23040 neival 23050 isnei 23051 lpval 23087 restdis 23126 ordtbaslem 23136 ordtuni 23138 cndis 23239 tgcmp 23349 hauscmplem 23354 comppfsc 23480 elkgen 23484 xkoopn 23537 elqtop 23645 kqffn 23673 isfbas 23777 filss 23801 snfbas 23814 elfg 23819 ufilss 23853 fixufil 23870 cfinufil 23876 ufinffr 23877 ufilen 23878 fin1aufil 23880 flimclslem 23932 hauspwpwf1 23935 supnfcls 23968 flimfnfcls 23976 ptcmplem1 24000 tsmsfbas 24076 blfvalps 24331 blfps 24354 blf 24355 bcthlem5 25288 minveclem3b 25388 sigaclcuni 34256 sigaclcu2 34258 pwsiga 34268 erdsze2lem2 35379 cvmsval 35441 cvmsss2 35449 neibastop2lem 36535 tailf 36550 pibt2 37593 fin2so 37779 sdclem1 37915 elrfirn 42973 elrfirn2 42974 istopclsd 42978 nacsfix 42990 dnnumch1 43322 inpw 49106 |
| Copyright terms: Public domain | W3C validator |