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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 3604 | . 2 ⊢ (𝐴 = 𝐵 → 𝒫 𝐴 = 𝒫 𝐵) | |
3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → 𝒫 𝐴 = 𝒫 𝐵) |
Colors of variables: wff set class |
Syntax hints: → wi 4 = wceq 1364 𝒫 cpw 3601 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-11 1517 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-ext 2175 |
This theorem depends on definitions: df-bi 117 df-tru 1367 df-nf 1472 df-sb 1774 df-clab 2180 df-cleq 2186 df-clel 2189 df-in 3159 df-ss 3166 df-pw 3603 |
This theorem is referenced by: pmvalg 6713 issubm 13044 issubg 13243 subgex 13246 issubrng 13695 issubrg 13717 lsssetm 13852 lspfval 13884 lsppropd 13928 sraval 13933 basis1 14215 baspartn 14218 cldval 14267 ntrfval 14268 clsfval 14269 neifval 14308 mopnfss 14615 |
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