michael/lean2 - Forgejo: Beyond coding. We forge.

michael/lean2

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-												test(frontends/lean): add example showing higher order matching is working, and is useful

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>

											
										
										
											2013-10-25 03:18:48 +00:00
+								  Set: pp::colors
 								  Set: pp::unicode
 								  Assumed: g
 								  Assumed: a
 								  Assumed: b
 								  Assumed: H1
 								  Assumed: H2
 								  Proved: T1
 								Axiom H2 : (g a) > 0
-												feat(frontends/lean): make the first argument of if-expression implicit, add support for marking implicit arguments on builtin symbols (aka semantic attachments)

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>

											
										
										
											2013-10-29 22:53:50 +00:00
+								Theorem T1 : (g b) > 0 := Subst (λ x : ℤ, if ((g x) ≤ 0) ⊥ ⊤) H2 H1