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Theorem cdeqth 2751
Description: Deduce conditional equality from a theorem. (Contributed by Mario Carneiro, 11-Aug-2016.)
Hypothesis
Ref Expression
cdeqth.1 𝜑
Assertion
Ref Expression
cdeqth CondEq(𝑥 = 𝑦𝜑)

Proof of Theorem cdeqth
StepHypRef Expression
1 cdeqth.1 . . 3 𝜑
21a1i 9 . 2 (𝑥 = 𝑦𝜑)
32cdeqi 2749 1 CondEq(𝑥 = 𝑦𝜑)
Colors of variables: wff set class
Syntax hints:  CondEqwcdeq 2747
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101
This theorem depends on definitions:  df-bi 110  df-cdeq 2748
This theorem is referenced by:  cdeqal1  2755  cdeqab1  2756  nfccdeq  2762
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