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Mirrors > Home > ILE Home > Th. List > bitru | Unicode version |
Description: A theorem is equivalent to truth. (Contributed by Mario Carneiro, 9-May-2015.) |
Ref | Expression |
---|---|
bitru.1 |
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Ref | Expression |
---|---|
bitru |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | bitru.1 |
. 2
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2 | tru 1318 |
. 2
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3 | 1, 2 | 2th 173 |
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 df-tru 1317 |
This theorem is referenced by: truorfal 1367 falortru 1368 truimtru 1370 falimtru 1372 falimfal 1373 notfal 1375 trubitru 1376 falbifal 1379 |
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