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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 3593 | . 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 3590 |
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 2171 |
This theorem depends on definitions: df-bi 117 df-tru 1367 df-nf 1472 df-sb 1774 df-clab 2176 df-cleq 2182 df-clel 2185 df-in 3150 df-ss 3157 df-pw 3592 |
This theorem is referenced by: pmvalg 6686 issubm 12939 issubg 13129 subgex 13132 issubrng 13563 issubrg 13585 lsssetm 13689 lspfval 13721 lsppropd 13765 sraval 13770 basis1 14024 baspartn 14027 cldval 14076 ntrfval 14077 clsfval 14078 neifval 14117 mopnfss 14424 |
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