| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > sselpwd | Structured version Visualization version GIF version | ||
| Description: Membership in a power set. (Contributed by Thierry Arnoux, 18-May-2020.) |
| Ref | Expression |
|---|---|
| sselpwd.1 | ⊢ (𝜑 → 𝐵 ∈ 𝑉) |
| sselpwd.2 | ⊢ (𝜑 → 𝐴 ⊆ 𝐵) |
| Ref | Expression |
|---|---|
| sselpwd | ⊢ (𝜑 → 𝐴 ∈ 𝒫 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sselpwd.1 | . . 3 ⊢ (𝜑 → 𝐵 ∈ 𝑉) | |
| 2 | sselpwd.2 | . . 3 ⊢ (𝜑 → 𝐴 ⊆ 𝐵) | |
| 3 | 1, 2 | ssexd 5294 | . 2 ⊢ (𝜑 → 𝐴 ∈ V) |
| 4 | 3, 2 | elpwd 4567 | 1 ⊢ (𝜑 → 𝐴 ∈ 𝒫 𝐵) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2142 Vcvv 3454 ⊆ wss 3904 𝒫 cpw 4561 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-8 2144 ax-9 2152 ax-ext 2734 ax-sep 5256 |
| This proof depends on definitions: df-bi 210 df-an 401 df-3an 1104 df-tru 1572 df-ex 1809 df-sb 2096 df-clab 2741 df-cleq 2754 df-clel 2837 df-rab 3416 df-v 3456 df-in 3911 df-ss 3921 df-pw 4563 |
| This theorem is used by: knatar 7357 marypha1 9392 fin1a2lem7 10396 canthp1lem2 10644 wunss 10703 ramub1lem1 17092 mreexd 17704 mreexexlemd 17706 mreexexlem4d 17709 opsrval 22208 selvfval 22281 cncls 23442 fbasrn 24052 rnelfmlem 24120 ustssel 24374 hashimaf1 33166 pwrssmgc 33329 esplyfv1 33968 exsslsb 33996 crefi 34246 ldsysgenld 34559 ldgenpisyslem1 34562 bj-ismoored 37777 bj-imdirval2 37855 bj-iminvval2 37866 sticksstones2 42942 rfovcnvf1od 44758 fsovrfovd 44763 fsovfd 44766 fsovcnvlem 44767 ntrclsrcomplex 44789 clsk3nimkb 44794 clsk1indlem4 44798 clsk1indlem1 44799 ntrclsiso 44821 ntrclskb 44823 ntrclsk3 44824 ntrclsk13 44825 ntrneircomplex 44828 ntrneik3 44850 ntrneix3 44851 ntrneik13 44852 ntrneix13 44853 clsneircomplex 44857 clsneiel1 44862 neicvgrcomplex 44867 neicvgel1 44873 mnussd 45001 mnuprssd 45007 mnuop3d 45009 wessf1ornlem 45931 dvnprodlem1 46688 ovolsplit 46730 saliunclf 47064 sge0f1o 47124 isisubgr 48655 iscnrm3rlem3 49748 |
| Copyright terms: Public domain | W3C validator |