lean2/tests/lean/exists1.lean

Import int.
Variable a : Int
Variable P : Int -> Int -> Bool
Axiom H : P a a
Theorem T : exists x : Int, P a a := ExistsIntro a H.
Show Environment 1.
refactor(builtin): only load the kernel and natural numbers by default Signed-off-by: Leonardo de Moura <leonardo@microsoft.com> 2013-12-30 21:35:37 +00:00			`Import int.`
feat(library/basic_thms): add ExistsIntro theorem Signed-off-by: Leonardo de Moura <leonardo@microsoft.com> 2013-12-16 00:26:23 +00:00			`Variable a : Int`
			`Variable P : Int -> Int -> Bool`
			`Axiom H : P a a`
			`Theorem T : exists x : Int, P a a := ExistsIntro a H.`
			`Show Environment 1.`