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Theorem truimtru 1344
Description: A identity. (Contributed by Anthony Hart, 22-Oct-2010.)
Assertion
Ref Expression
truimtru

Proof of Theorem truimtru
StepHypRef Expression
1 id 19 . 2
21bitru 1326 1
Colors of variables: wff setvar class
Syntax hints:   wi 4   wb 176   wtru 1316
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8
This theorem depends on definitions:  df-bi 177  df-tru 1319
This theorem is referenced by: (None)
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