Theorem pweqd 3515

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 3513	. 2 ⊢ (𝐴 = 𝐵 → 𝒫 𝐴 = 𝒫 𝐵)
3	1, 2	syl 14	1 ⊢ (𝜑 → 𝒫 𝐴 = 𝒫 𝐵)

Syntax hints:   → wi 4   = wceq 1331  𝒫 cpw 3510

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-5 1423  ax-7 1424  ax-gen 1425  ax-ie1 1469  ax-ie2 1470  ax-8 1482  ax-11 1484  ax-4 1487  ax-17 1506  ax-i9 1510  ax-ial 1514  ax-i5r 1515  ax-ext 2121

This theorem depends on definitions:  df-bi 116  df-tru 1334  df-nf 1437  df-sb 1736  df-clab 2126  df-cleq 2132  df-clel 2135  df-in 3077  df-ss 3084  df-pw 3512

This theorem is referenced by:  pmvalg  6553  basis1  12214  baspartn  12217  cldval  12268  ntrfval  12269  clsfval  12270  neifval  12309  mopnfss  12616