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Mirrors > Home > HOLE Home > Th. List > tru | Unicode version |
Description: Tautology is provable. (Contributed by Mario Carneiro, 7-Oct-2014.) |
Ref | Expression |
---|---|
tru |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wtru 43 |
. 2
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2 | 1 | id 25 |
1
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Colors of variables: type var term |
Syntax hints: ![]() ![]() |
This theorem was proved from axioms: ax-id 24 ax-cb1 29 ax-weq 40 ax-refl 42 |
This theorem is referenced by: eqtru 86 |
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