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Theorem imorr 796
Description: Implication in terms of disjunction. One direction of theorem *4.6 of [WhiteheadRussell] p. 120. The converse holds for decidable propositions, as seen at imordc 795. (Contributed by Jim Kingdon, 21-Jul-2018.)
Assertion
Ref Expression
imorr

Proof of Theorem imorr
StepHypRef Expression
1 ax-in2 545 . 2
2 ax-1 5 . 2
31, 2jaoi 635 1
Colors of variables: wff set class
Syntax hints:   wn 3   wi 4   wo 628
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101  ax-in2 545  ax-io 629
This theorem depends on definitions:  df-bi 110
This theorem is referenced by:  pm4.52im  802  nf4r  1558
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