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Theorem falanfal 1339
Description: A identity. (Contributed by Anthony Hart, 22-Oct-2010.)
Ref Expression

Proof of Theorem falanfal
StepHypRef Expression
1 anidm 625 1
Colors of variables: wff setvar class
Syntax hints:   wb 176   wa 358   wfal 1317
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8
This theorem depends on definitions:  df-bi 177  df-an 360
This theorem is referenced by: (None)
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