Entry
Value
Name
SKX_EQ_I
Conclusion
!x. S K x = I
Constructive Proof
Yes
Axiom
N|A
Classical Lemmas
N|A
Constructive Lemmas
T
!x y. K x y = x
!x. x = x
!t. (!x. t) <=> t
!f y. (\x. f x) y = f y
T <=> (\p. p) = (\p. p)
I = (\x. x)
K = (\x y. x)
(/\) = (\p q. (\f. f p q) = (\f. f T T))
(==>) = (\p q. p /\ q <=> p)
(!) = (\p. p = (\x. T))
S = (\f g x. f x (g x))
Contained Package
function-thm
Comment
Standard HOL library retrieved from OpenTheory
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