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Theorem falanfal 1500
Description: A identity. (Contributed by Anthony Hart, 22-Oct-2010.)
Assertion
Ref Expression
falanfal ((⊥ ∧ ⊥) ↔ ⊥)

Proof of Theorem falanfal
StepHypRef Expression
1 anidm 674 1 ((⊥ ∧ ⊥) ↔ ⊥)
Colors of variables: wff setvar class
Syntax hints:  wb 195  wa 383  wfal 1480
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 196  df-an 385
This theorem is referenced by: (None)
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