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Theorem alrot3 1846
Description: Theorem *11.21 in [WhiteheadRussell] p. 160. (Contributed by Andrew Salmon, 24-May-2011.)
Assertion
Ref Expression
alrot3

Proof of Theorem alrot3
StepHypRef Expression
1 alcom 1845 . 2
2 alcom 1845 . . 3
32albii 1640 . 2
41, 3bitri 249 1
Colors of variables: wff setvar class
Syntax hints:  <->wb 184  A.wal 1393
This theorem is referenced by:  alrot4  1847  nfnid  4681  raliunxp  5147  dff13  6166
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1618  ax-4 1631  ax-11 1842
This theorem depends on definitions:  df-bi 185
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