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Theorem cnveqd 4888
 Description: Equality deduction for converse. (Contributed by set.mm contributors, 6-Dec-2013.)
Hypothesis
Ref Expression
cnveqd.1 (φA = B)
Assertion
Ref Expression
cnveqd (φA = B)

Proof of Theorem cnveqd
StepHypRef Expression
1 cnveqd.1 . 2 (φA = B)
2 cnveq 4886 . 2 (A = BA = B)
31, 2syl 15 1 (φA = B)
 Colors of variables: wff setvar class Syntax hints:   → wi 4   = wceq 1642  ◡ccnv 4771 This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1546  ax-5 1557  ax-17 1616  ax-9 1654  ax-8 1675  ax-6 1729  ax-7 1734  ax-11 1746  ax-12 1925  ax-ext 2334 This theorem depends on definitions:  df-bi 177  df-or 359  df-an 360  df-nan 1288  df-tru 1319  df-ex 1542  df-nf 1545  df-sb 1649  df-clab 2340  df-cleq 2346  df-clel 2349  df-nfc 2478  df-v 2861  df-nin 3211  df-compl 3212  df-in 3213  df-ss 3259  df-opab 4623  df-br 4640  df-cnv 4785 This theorem is referenced by:  cores2  5091
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