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Theorem allt 28384
Description: For all sets, T. is true. (Contributed by Anthony Hart, 13-Sep-2011.)
Assertion
Ref Expression
allt  |-  A. x T.

Proof of Theorem allt
StepHypRef Expression
1 tru 1374 . 2  |- T.
21ax-gen 1592 1  |-  A. x T.
Colors of variables: wff setvar class
Syntax hints:   A.wal 1368   T. wtru 1371
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1592
This theorem depends on definitions:  df-bi 185  df-tru 1373
This theorem is referenced by:  extt  28387
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