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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 4559 | . . 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 3903 𝒫 cpw 4556 |
| 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 3920 df-pw 4558 |
| This theorem is referenced by: sselpwd 5275 pwel 5328 frd 5589 f1opw2 7623 pwuncl 7725 naddunif 8631 f1opwfi 9268 ackbij1lem6 10146 ackbij1lem11 10151 mreacs 17593 sylow3lem3 19570 sylow3lem6 19573 cmpcov 23345 tgqtop 23668 filss 23809 nulsltsd 27785 nulsgtsd 27786 cutsval 27788 madecut 27891 cofcut1 27928 cutlt 27940 elons2d 28267 oncutlt 28272 bdayons 28284 fnpreimac 32760 indval 32943 exsslsb 33774 pcmplfin 34038 rspectopn 34045 zarclsint 34050 zarcmplem 34059 reprval 34788 bj-sselpwuni 37298 bj-discrmoore 37364 dmvolss 46343 sge0xaddlem1 46791 meadjuni 46815 ovnval2b 46910 ovnsubadd2lem 47003 vonvolmbllem 47018 vonvolmbl 47019 smfresal 47146 smfpimbor1lem1 47156 sprsymrelfvlem 47850 isubgruhgr 48228 grimuhgr 48247 gpgiedgdmellem 48406 lindslinindsimp1 48817 lindslinindimp2lem4 48821 lincresunit3 48841 iscnrm3llem1 49308 |
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