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Theorem bi-rev-syl 71
Description: The right-hand side of a {go} may also be weakened to a {ganai}. Theorem biimpri in [ILE] p. 0. (Contributed by la korvo, 10-Jul-2023.)
Hypothesis
Ref Expression
bi-rev-syl.0go broda gi brode
Assertion
Ref Expression
bi-rev-sylganai brode gi broda

Proof of Theorem bi-rev-syl
StepHypRef Expression
1 bi-rev-syl.0 . . 3go broda gi brode
21go-comi 66 . 2go brode gi broda
32go-ganai 54 1ganai brode gi broda
Colors of variables: sumti selbri bridi
This theorem was proved from axioms:  ax-mp 10  ax-k 11  ax-s 14  ax-ge-le 34  ax-ge-re 35  ax-ge-in 36
This theorem depends on definitions:  df-go 52
This theorem is referenced by:  sylibr  74  gar  130  se-dual  172  se-dual-r  174  duris  201  te-dual  327  te-dual-r  329
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