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Theorem 3mix1i 1168
Description: Introduction in triple disjunction. (Contributed by Mario Carneiro, 6-Oct-2014.)
Hypothesis
Ref Expression
3mixi.1
Assertion
Ref Expression
3mix1i

Proof of Theorem 3mix1i
StepHypRef Expression
1 3mixi.1 . 2
2 3mix1 1165 . 2
31, 2ax-mp 5 1
Colors of variables: wff setvar class
Syntax hints:  \/w3o 972
This theorem is referenced by:  tpid1  4143  0z  10900  ppiublem2  23478
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8
This theorem depends on definitions:  df-bi 185  df-or 370  df-3or 974
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