Entry
Value
Name
HAS_SIZE_CARD
Conclusion
!s n. s HAS_SIZE n ==> CARD s = n
Constructive Proof
Yes
Axiom
N|A
Classical Lemmas
N|A
Constructive Lemmas
T
!x. x = x
!t. (!x. t) <=> t
!t. F ==> t <=> T
!t. T ==> t <=> t
!t. t ==> F <=> ~t
!t. t ==> T <=> T
!t. t ==> t
!s n. s HAS_SIZE n <=> FINITE s /\ CARD s = n
F <=> (!p. p)
T <=> (\p. p) = (\p. p)
(~) = (\p. p ==> F)
(/\) = (\p q. (\f. f p q) = (\f. f T T))
(==>) = (\p q. p /\ q <=> p)
(!) = (\p. p = (\x. T))
Contained Package
set-size-thm
Comment
Standard HOL library retrieved from OpenTheory
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