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Theorem bj-jarrii 31124
Description: Inference associated with bj-jarri 31123. (Contributed by BJ, 29-Mar-2020.)
Hypotheses
Ref Expression
bj-jarrii.1  |-  ( (
ph  ->  ps )  ->  ch )
bj-jarrii.2  |-  ps
Assertion
Ref Expression
bj-jarrii  |-  ch

Proof of Theorem bj-jarrii
StepHypRef Expression
1 bj-jarrii.2 . . 3  |-  ps
21a1i 11 . 2  |-  ( ph  ->  ps )
3 bj-jarrii.1 . 2  |-  ( (
ph  ->  ps )  ->  ch )
42, 3ax-mp 5 1  |-  ch
Colors of variables: wff setvar class
Syntax hints:    -> wi 4
This theorem was proved from axioms:  ax-mp 5  ax-1 6
This theorem is referenced by: (None)
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