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| Mirrors > Home > MPE Home > Th. List > elpwd | Structured version Visualization version GIF version | ||
| Description: Membership in a power class. (Contributed by Glauco Siliprandi, 11-Oct-2020.) |
| Ref | Expression |
|---|---|
| elpwd.1 | ⊢ (𝜑 → 𝐴 ∈ 𝑉) |
| elpwd.2 | ⊢ (𝜑 → 𝐴 ⊆ 𝐵) |
| Ref | Expression |
|---|---|
| elpwd | ⊢ (𝜑 → 𝐴 ∈ 𝒫 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elpwd.2 | . 2 ⊢ (𝜑 → 𝐴 ⊆ 𝐵) | |
| 2 | elpwd.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ 𝑉) | |
| 3 | elpwg 4545 | . . 3 ⊢ (𝐴 ∈ 𝑉 → (𝐴 ∈ 𝒫 𝐵 ↔ 𝐴 ⊆ 𝐵)) | |
| 4 | 2, 3 | syl 17 | . 2 ⊢ (𝜑 → (𝐴 ∈ 𝒫 𝐵 ↔ 𝐴 ⊆ 𝐵)) |
| 5 | 1, 4 | mpbird 257 | 1 ⊢ (𝜑 → 𝐴 ∈ 𝒫 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∈ wcel 2114 ⊆ wss 3890 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-ss 3907 df-pw 4544 |
| This theorem is referenced by: sselpwd 5266 pwel 5319 frd 5582 f1opw2 7616 pwuncl 7718 naddunif 8623 f1opwfi 9260 ackbij1lem6 10140 ackbij1lem11 10145 indval 12156 mreacs 17618 sylow3lem3 19598 sylow3lem6 19601 cmpcov 23367 tgqtop 23690 filss 23831 nulsltsd 27786 nulsgtsd 27787 cutsval 27789 madecut 27892 cofcut1 27929 cutlt 27941 elons2d 28268 oncutlt 28273 bdayons 28285 fnpreimac 32761 exsslsb 33759 pcmplfin 34023 rspectopn 34030 zarclsint 34035 zarcmplem 34044 reprval 34773 bj-sselpwuni 37376 bj-discrmoore 37442 dmvolss 46434 sge0xaddlem1 46882 meadjuni 46906 ovnval2b 47001 ovnsubadd2lem 47094 vonvolmbllem 47109 vonvolmbl 47110 smfresal 47237 smfpimbor1lem1 47247 sprsymrelfvlem 47965 isubgruhgr 48359 grimuhgr 48378 gpgiedgdmellem 48537 lindslinindsimp1 48948 lindslinindimp2lem4 48952 lincresunit3 48972 iscnrm3llem1 49439 |
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