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Theorem nibliri 509
Description: Reverse inference form of df-nibli 506 (Contributed by la korvo, 19-Jul-2024.)
Hypothesis
Ref Expression
nibliri.0ganai broda gi brode
Assertion
Ref Expression
nibliripa du'u broda kei nibli pa du'u brode kei

Proof of Theorem nibliri
StepHypRef Expression
1 nibliri.0 . 2ganai broda gi brode
2 df-nibli 506 . 2go pa du'u broda kei nibli pa du'u brode kei gi ganai broda gi brode
31, 2bi-rev 102 1pa du'u broda kei nibli pa du'u brode kei
Colors of variables: sumti selbri bridi
Syntax hints:   ganai bgan 9   pa sdu 489   nibli sbnibli 505
This theorem was proved from axioms:  ax-mp 10  ax-k 11  ax-s 15  ax-ge-le 48  ax-ge-re 49  ax-ge-in 50
This theorem depends on definitions:  df-go 83  df-nibli 506
This theorem is referenced by:  nibli-refl  510
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