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Mirrors > Home > ILE Home > Th. List > baibr | Unicode version |
Description: Move conjunction outside of biconditional. (Contributed by NM, 11-Jul-1994.) |
Ref | Expression |
---|---|
baib.1 |
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Ref | Expression |
---|---|
baibr |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | baib.1 |
. . 3
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2 | 1 | baib 887 |
. 2
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3 | 2 | bicomd 140 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 |
This theorem depends on definitions: df-bi 116 |
This theorem is referenced by: rbaibr 890 pm5.44 893 exmoeu2 2023 r19.9rmv 3420 dfopg 3669 brinxp 4567 elioo5 9609 prmind2 11647 |
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