Entry
Value
Name
take_zero
Conclusion
!l. take 0 l = []
Constructive Proof
Yes
Axiom
N|A
Classical Lemmas
N|A
Constructive Lemmas
T
!x. x = x
!t. (!x. t) <=> t
T <=> (\p. p) = (\p. p)
(/\) = (\p q. (\f. f p q) = (\f. f T T))
(==>) = (\p q. p /\ q <=> p)
(!) = (\p. p = (\x. T))
Contained Package
list-take-drop-def
Comment
Standard HOL library retrieved from OpenTheory
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