Theorem pweqd 3611

Description: Equality deduction for power class. (Contributed by NM, 27-Nov-2013.)

Hypothesis

Ref	Expression
pweqd.1	⊢ (𝜑 → 𝐴 = 𝐵)

Assertion

Ref	Expression
pweqd	⊢ (𝜑 → 𝒫 𝐴 = 𝒫 𝐵)

Proof of Theorem pweqd

Step	Hyp	Ref	Expression
1		pweqd.1	. 2 ⊢ (𝜑 → 𝐴 = 𝐵)
2		pweq 3609	. 2 ⊢ (𝐴 = 𝐵 → 𝒫 𝐴 = 𝒫 𝐵)
3	1, 2	syl 14	1 ⊢ (𝜑 → 𝒫 𝐴 = 𝒫 𝐵)

Syntax hints:   → wi 4   = wceq 1364  𝒫 cpw 3606

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 1461  ax-7 1462  ax-gen 1463  ax-ie1 1507  ax-ie2 1508  ax-8 1518  ax-11 1520  ax-4 1524  ax-17 1540  ax-i9 1544  ax-ial 1548  ax-i5r 1549  ax-ext 2178

This theorem depends on definitions:  df-bi 117  df-tru 1367  df-nf 1475  df-sb 1777  df-clab 2183  df-cleq 2189  df-clel 2192  df-in 3163  df-ss 3170  df-pw 3608

This theorem is referenced by:  pmvalg  6727  issubm  13174  issubg  13379  subgex  13382  issubrng  13831  issubrg  13853  lsssetm  13988  lspfval  14020  lsppropd  14064  sraval  14069  basis1  14367  baspartn  14370  cldval  14419  ntrfval  14420  clsfval  14421  neifval  14460  mopnfss  14767