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Theorem mpid 37
Description: A nested modus ponens deduction. (Contributed by NM, 14-Dec-2004.)
Hypotheses
Ref Expression
mpid.1
mpid.2
Assertion
Ref Expression
mpid

Proof of Theorem mpid
StepHypRef Expression
1 mpid.1 . . 3
21a1d 22 . 2
3 mpid.2 . 2
42, 3mpdd 36 1
Colors of variables: wff set class
Syntax hints:   wi 4
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7
This theorem is referenced by:  mp2d  41  pm2.43a  45  embantd  50  mpan2d  404  ceqsalt  2574  rspcimdv  2651  fvimacnv  5225  riotass2  5437  0mnnnnn0  7990
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