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| Mirrors > Home > ILE Home > Th. List > pweqd | GIF version | ||
| Description: Equality deduction for power class. (Contributed by NM, 27-Nov-2013.) |
| Ref | Expression |
|---|---|
| pweqd.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
| Ref | Expression |
|---|---|
| pweqd | ⊢ (𝜑 → 𝒫 𝐴 = 𝒫 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | pweqd.1 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 2 | pweq 3691 | . 2 ⊢ (𝐴 = 𝐵 → 𝒫 𝐴 = 𝒫 𝐵) | |
| 3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → 𝒫 𝐴 = 𝒫 𝐵) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 = wceq 1402 𝒫 cpw 3688 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-11 1559 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-in 3226 df-ss 3233 df-pw 3690 |
| This theorem is used by: pmvalg 6938 issubm 13837 issubg 14034 subgex 14037 cntzex 14149 cntzfval 14151 issubrng 14615 issubrg 14637 lsssetm 14801 lspfval 14833 lsppropd 14877 sraval 14882 aspval 15123 basis1 15290 baspartn 15293 cldval 15342 ntrfval 15343 clsfval 15344 neifval 15383 mopnfss 15690 isuhgrm 16534 isushgrm 16535 isuhgropm 16544 uhgrun 16549 isupgren 16558 upgrop 16567 isumgren 16568 umgr1een 16588 upgrun 16589 umgrun 16591 isuspgren 16620 isusgren 16621 isuspgropen 16627 isusgropen 16628 ausgrusgrben 16631 usgrstrrepeen 16694 issubgr 16720 uhgrspansubgrlem 16739 |
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