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Theorem mp2 37
Description: Double modus ponens. (Contributed by la korvo, 27-Jul-2023.)
Hypotheses
Ref Expression
mp2.0 ⊢ broda
mp2.1 ⊢ brode
mp2.2 ⊢ ganai broda gi ganai brode gi brodi
Assertion
Ref Expression
mp2 ⊢ brodi

Proof of Theorem mp2
StepHypRef Expression
1 mp2.0 . 2 ⊢ broda
2 mp2.1 . . 3 ⊢ brode
3 mp2.2 . . 3 ⊢ ganai broda gi ganai brode gi brodi
42, 3mpi 36 . 2 ⊢ ganai broda gi brodi
51, 4ax-mp 10 1 ⊢ brodi
Colors of variables: sumti selbri bridi
This theorem was proved from axioms:  ax-mp 10  ax-k 11  ax-s 15
This theorem is referenced by:  ge-ini  55
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