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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 4557 | . . 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 2113 ⊆ wss 3901 𝒫 cpw 4554 |
| 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 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2708 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1544 df-ex 1781 df-sb 2068 df-clab 2715 df-cleq 2728 df-clel 2811 df-ss 3918 df-pw 4556 |
| This theorem is referenced by: sselpwd 5273 pwel 5326 frd 5581 f1opw2 7613 pwuncl 7715 naddunif 8621 f1opwfi 9256 ackbij1lem6 10134 ackbij1lem11 10139 mreacs 17581 sylow3lem3 19558 sylow3lem6 19561 cmpcov 23333 tgqtop 23656 filss 23797 nulsltsd 27773 nulsgtsd 27774 cutsval 27776 madecut 27879 cofcut1 27916 cutlt 27928 elons2d 28255 oncutlt 28260 bdayons 28272 fnpreimac 32749 indval 32932 exsslsb 33753 pcmplfin 34017 rspectopn 34024 zarclsint 34029 zarcmplem 34038 reprval 34767 bj-sselpwuni 37251 bj-discrmoore 37316 dmvolss 46229 sge0xaddlem1 46677 meadjuni 46701 ovnval2b 46796 ovnsubadd2lem 46889 vonvolmbllem 46904 vonvolmbl 46905 smfresal 47032 smfpimbor1lem1 47042 sprsymrelfvlem 47736 isubgruhgr 48114 grimuhgr 48133 gpgiedgdmellem 48292 lindslinindsimp1 48703 lindslinindimp2lem4 48707 lincresunit3 48727 iscnrm3llem1 49194 |
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