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Theorem mp1i 10
Description: Drop and replace an antecedent. (Contributed by Stefan O'Rear, 29-Jan-2015.)
Hypotheses
Ref Expression
mp1i.a
mp1i.b
Assertion
Ref Expression
mp1i

Proof of Theorem mp1i
StepHypRef Expression
1 mp1i.a . . 3
2 mp1i.b . . 3
31, 2ax-mp 7 . 2
43a1i 9 1
Colors of variables: wff set class
Syntax hints:   wi 4
This theorem was proved from axioms:  ax-1 5  ax-mp 7
This theorem is referenced by:  poirr2  4660  relcoi2  4791  tfrlemi14d  5888  cauappcvgprlemladd  6630
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