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Theorem a1tru 1386
Description: Anything implies T.. (Contributed by FL, 20-Mar-2011.) (Proof shortened by Anthony Hart, 1-Aug-2011.)
Assertion
Ref Expression
a1tru  |-  ( ph  -> T.  )

Proof of Theorem a1tru
StepHypRef Expression
1 tru 1374 . 2  |- T.
21a1i 11 1  |-  ( ph  -> T.  )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4   T. wtru 1371
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 185  df-tru 1373
This theorem is referenced by:  truanOLD  1388  disjprg  4386  euotd  4690  elabrex  6059  riota5f  6176  ac6s6  29122  lhpexle1  33958
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