slow example

[helm.git] / helm / software / components / ng_refiner / esempio.ma

diff --git a/helm/software/components/ng_refiner/esempio.ma b/helm/software/components/ng_refiner/esempio.ma
index 4005ee98ac2a187b441f06556473fbfbf3594579..d0f6a2e8692f5c64d84ef44779817dfb733af925 100644 (file)
--- a/helm/software/components/ng_refiner/esempio.ma
+++ b/helm/software/components/ng_refiner/esempio.ma
@@ -15,21 +15,50 @@
 include "nat/plus.ma".
 
 definition hole : ∀A:Type.A → A ≝ λA.λx.x.
+definition id : ∀A:Type.A → A ≝ λA.λx.x.
 
-inductive pippo (T:Type) (x:T) : Prop ≝ . 
+(* meta1 Vs meta2 with different contexts
+axiom foo: 
+  ∀P:Type.∀f:P→P→Prop.∀x:P.
+   (λw. ((∀e:P.f x (w x)) = (∀y:P. f x (hole ? y)))) 
+   (λw:P.hole ? w). 
+*)
 
-axiom A: Type. 
-axiom B:A.
+(* meta1 Vs meta1 with different local contexts
+axiom foo: 
+  ∀P:Type.∀f:P→P→P.∀x,y:P. 
+    (λw.(f x (w x) = f x (w y))) (λw:P.hole ? w).
+*)
 
-axiom foo : \forall x: (hole ? A).pippo (hole ? A) x.
+(* meta Vs term && term Vs meta with different local ctx
+axiom foo: 
+  ∀P:Type.∀f:P→P→P.∀x,y:P.
+    (λw.(f (w x) (hole ? x) = f x (w y))) (λw:P.hole ? w).
+*)
 
-axiom foo: (λx,y:A. pippo (hole ? A) x y) 
-           (hole ? B) (hole ? B).
+(* occur check
+axiom foo: 
+  ∀P:Type.∀f:P→P→P.∀x,y:P.
+    (λw.(f x (f (w x) x) = f x (w y))) (λw:P.hole ? w).
+*)
 
-axiom foo: λx:(hole ? Type).λy:(hole ? Type). pippo (hole ? Type) x y.
+(* unifying the type of (y ?) with (Q x) we instantiate ? to x
+axiom foo: 
+  ∀P:Type.∀Q:P→Type.∀f:∀x:P.Q x→P→P.∀x:P.∀y:∀x.Q x.
+    (λw.(f w (y w) x = (id ? f) x (hole ? (y x)) x)) (hole ? x).
+*)  
+   
+alias num (instance 0) = "natural number".
+axiom foo: (12+12) = (12+11).
 
+
+    (id ?(id ?(id ?(id ? (100+100))))) =
+    (id ?(id ?(id ?(id ? (99+100))))).[3:
+    apply (refl_eq nat (id ?(id ?(id ?(id ? (98+102+?))))));
+
+axiom foo: (λx,y.(λz. z (x+y) + z x) (λw:nat.hole ? w)) = λx,y.x. (* OK *)
 axiom foo: (λx,y.(λz. z x + z (x+y)) (λw:nat.hole ? w)) = λx,y.x. (* KO, delift rels only *) 
-axiom foo: (λx,y.(λz. z (x+y) + z x) (λw:nat.hole ? w)) = λx,y.x. (* OK *) 
+ 
 
 
 axiom foo: (λx,y.(λz. z x + z y) (λw:nat.hole ? w)) = λx,y.x. (* OK *)