X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Fnlibrary%2Foverlap%2Fo-algebra.ma;h=c55131315b21261d7fb493f1af47342a224f2a61;hb=9eca05b38858f9d5b36b9a102c6c8c01632b5057;hp=ce922a38aa05c8dd272655d9663b8bf137fc143b;hpb=924e808f1bc958a2d3c8ac05c96aeb8bc1f6d791;p=helm.git

diff --git a/helm/software/matita/nlibrary/overlap/o-algebra.ma b/helm/software/matita/nlibrary/overlap/o-algebra.ma
index ce922a38a..c55131315 100644
--- a/helm/software/matita/nlibrary/overlap/o-algebra.ma
+++ b/helm/software/matita/nlibrary/overlap/o-algebra.ma
@@ -237,11 +237,15 @@ unification hint 0 ≔ P, Q, r;
  R ≟ (mk_unary_morphism1 … (or_f_minus …) (prop11 … (or_f_minus_morphism1 …)))
 (* ------------------------ *) ⊢
   fun11 … R r ≡ or_f_minus P Q r.
+  
+naxiom daemon : False.
 
 nlemma ORelation_eq_respects_leq_or_f_star_:
  ∀P,Q:OAlgebra.∀r,r':ORelation P Q.
   r=r' → ∀x. r* x ≤ r'* x.
  #P; #Q; #a; #a'; #e; #x; (*CSC: una schifezza *)
+ ncases daemon.
+ (*
  ngeneralize in match (. (or_prop1 P Q a' (a* x) x)^-1) in ⊢ %; #H; napply H;
  nchange with (or_f P Q a' (a* x) ≤ x);
  napply (. ?‡#)
@@ -250,7 +254,7 @@ nlemma ORelation_eq_respects_leq_or_f_star_:
     nchange with (or_f P Q a' = or_f P Q a);
     napply (.= †e^-1); napply #]
  napply (. (or_prop1 …));
- napply oa_leq_refl.
+ napply oa_leq_refl.*)
 nqed.
 
 nlemma ORelation_eq3:
@@ -277,6 +281,7 @@ nlemma ORelation_eq_respects_leq_or_f_minus_star_:
  ∀P,Q:OAlgebra.∀r,r':ORelation P Q.
   r=r' → ∀x. r⎻* x ≤ r'⎻* x.
  #P; #Q; #a; #a'; #e; #x; (*CSC: una schifezza *)
+ ncases daemon. (*
  ngeneralize in match (. (or_prop2 P Q a' (a⎻* x) x)^-1) in ⊢ %; #H; napply H;
  nchange with (or_f_minus P Q a' (a⎻* x) ≤ x);
  napply (. ?‡#)
@@ -285,7 +290,7 @@ nlemma ORelation_eq_respects_leq_or_f_minus_star_:
     nchange with (a'⎻ = a⎻);
     napply (.= †e^-1); napply #]
  napply (. (or_prop2 …));
- napply oa_leq_refl.
+ napply oa_leq_refl.*)
 nqed.
 
 nlemma ORelation_eq4:
@@ -303,67 +308,12 @@ ndefinition or_f_minus_star_morphism1:
   | napply ORelation_eq4]
 nqed.
 
+
 unification hint 0 ≔ P, Q, r;
  R ≟ (mk_unary_morphism1 … (or_f_minus_star …) (prop11 … (or_f_minus_star_morphism1 …)))
 (* ------------------------ *) ⊢
   fun11 … R r ≡ or_f_minus_star P Q r.
-
-(*CSC:
-ndefinition ORelation_composition : ∀P,Q,R. 
-  binary_morphism1 (ORelation_setoid P Q) (ORelation_setoid Q R) (ORelation_setoid P R).
-#P; #Q; #R; @
-[ #F; #G; @
-  [ napply (G ∘ F);
-  | apply rule (G⎻* ∘ F⎻* );
-  | apply (F* ∘ G* );
-  | apply (F⎻ ∘ G⎻);
-  | intros; 
-    change with ((G (F p) ≤ q) = (p ≤ (F* (G* q))));
-    apply (.= (or_prop1 :?));
-    apply (or_prop1 :?);
-  | intros;
-    change with ((F⎻ (G⎻ p) ≤ q) = (p ≤ (G⎻* (F⎻* q))));
-    apply (.= (or_prop2 :?));
-    apply or_prop2 ; 
-  | intros; change with ((G (F (p)) >< q) = (p >< (F⎻ (G⎻ q))));
-    apply (.= (or_prop3 :?));
-    apply or_prop3;
-  ]
-| intros; split; simplify; 
-   [3: unfold arrows1_of_ORelation_setoid; apply ((†e)‡(†e1));
-   |1: apply ((†e)‡(†e1));
-   |2,4: apply ((†e1)‡(†e));]]
-qed.
-
-definition OA : category2.
-split;
-[ apply (OAlgebra);
-| intros; apply (ORelation_setoid o o1);
-| intro O; split;
-  [1,2,3,4: apply id2;
-  |5,6,7:intros; apply refl1;] 
-| apply ORelation_composition;
-| intros (P Q R S F G H); split;
-   [ change with (H⎻* ∘ G⎻* ∘ F⎻* = H⎻* ∘ (G⎻* ∘ F⎻* ));
-     apply (comp_assoc2 ????? (F⎻* ) (G⎻* ) (H⎻* ));
-   | apply ((comp_assoc2 ????? (H⎻) (G⎻) (F⎻))^-1);
-   | apply ((comp_assoc2 ????? F G H)^-1);
-   | apply ((comp_assoc2 ????? H* G* F* ));]
-| intros; split; unfold ORelation_composition; simplify; apply id_neutral_left2;
-| intros; split; unfold ORelation_composition; simplify; apply id_neutral_right2;]
-qed.
-
-definition OAlgebra_of_objs2_OA: objs2 OA → OAlgebra ≝ λx.x.
-coercion OAlgebra_of_objs2_OA.
-
-definition ORelation_setoid_of_arrows2_OA: 
-  ∀P,Q. arrows2 OA P Q → ORelation_setoid P Q ≝ λP,Q,c.c.
-coercion ORelation_setoid_of_arrows2_OA.
-
-prefer coercion Type_OF_objs2.
-*)
-(* alias symbol "eq" = "setoid1 eq". *)
-
+  
 (* qui la notazione non va *)
 (*CSC
 nlemma leq_to_eq_join: ∀S:OAlgebra.∀p,q:S. p ≤ q → q = (binary_join ? p q).
@@ -486,4 +436,115 @@ nqed.
 
 nlemma oa_overlap_sym': ∀o:OAlgebra.∀U,V:o. (U >< V) = (V >< U).
  #o; #U; #V; @; #H; napply oa_overlap_sym; nassumption.
-nqed.
\ No newline at end of file
+nqed.
+
+(******************* CATEGORIES **********************)
+
+ninductive one : Type[0] ≝ unit : one.
+
+ndefinition force : ∀S:Type[2]. S → ∀T:Type[2]. T → one → Type[2] ≝   
+ λS,s,T,t,lock. match lock with [ unit => S ].
+
+ndefinition enrich_as : 
+ ∀S:Type[2].∀s:S.∀T:Type[2].∀t:T.∀lock:one.force S s T t lock ≝ 
+ λS,s,T,t,lock. match lock return λlock.match lock with [ unit ⇒ S ] 
+                    with [ unit ⇒ s ].
+
+ncoercion enrich_as : ∀S:Type[2].∀s:S.∀T:Type[2].∀t:T.∀lock:one. force S s T t lock
+ ≝ enrich_as on t: ? to force ? ? ? ? ?.
+
+(* does not work here 
+nlemma foo : ∀A,B,C:setoid1.∀f:B ⇒ C.∀g:A ⇒ B. unary_morphism1 A C.
+#A; #B; #C; #f; #g; napply(f \circ g).
+nqed.*)
+
+(* This precise hint does not leave spurious metavariables *)
+unification hint 0 ≔ A,B,C : setoid1, f:B ⇒ C, g: A ⇒ B;
+   lock ≟ unit
+(* --------------------------------------------------------------- *) ⊢
+  (unary_morphism1 A C)
+ ≡
+  (force (unary_morphism1 A C) (comp1_unary_morphisms A B C f g)
+   (carr1 A → carr1 C) (composition1 A B C f g)  lock)
+  .
+
+(* This uniform hint opens spurious metavariables
+unification hint 0 ≔ A,B,C : setoid1, f:B ⇒ C, g: A ⇒ B, X;
+   lock ≟ unit
+(* --------------------------------------------------------------- *) ⊢
+  (unary_morphism1 A C)
+ ≡
+  (force (unary_morphism1 A C) X (carr1 A → carr1 C) (fun11 … X)  lock)
+  .
+*)
+
+nlemma foo : ∀A,B,C:setoid1.∀f:B ⇒ C.∀g:A ⇒ B. unary_morphism1 A C.
+#A; #B; #C; #f; #g; napply(f ∘ g).
+nqed.
+
+(*
+
+ndefinition uffa: ∀A,B. ∀U: unary_morphism1 A B. (A → B) → CProp[0].
+ #A;#B;#_;#_; napply True.
+nqed.
+ndefinition mk_uffa: ∀A,B.∀U: unary_morphism1 A B. ∀f: (A → B). uffa A B U f.
+ #A; #B; #U; #f; napply I.
+nqed.
+
+ndefinition coerc_to_unary_morphism1:
+ ∀A,B. ∀U: unary_morphism1 A B. uffa A B U (fun11 … U) → unary_morphism1 A B.
+ #A; #B; #U; #_; nassumption.
+nqed.
+
+ncheck (λA,B,C,f,g.coerc_to_unary_morphism1 ??? (mk_uffa ??? (composition1 A B C f g))). 
+*)
+ndefinition ORelation_composition : ∀P,Q,R. 
+  binary_morphism1 (ORelation_setoid P Q) (ORelation_setoid Q R) (ORelation_setoid P R).
+#P; #Q; #R; @
+[ #F; #G; @
+  [ napply (G ∘ F) (* napply (comp1_unary_morphisms … G F) (*CSC: was (G ∘ F);*) *)
+  | napply (G⎻* ∘ F⎻* ) (* napply (comp1_unary_morphisms … G⎻* F⎻* ) (*CSC: was (G⎻* ∘ F⎻* );*)*)
+  | napply (comp1_unary_morphisms … F* G* ) (*CSC: was (F* ∘ G* );*)
+  | napply (comp1_unary_morphisms … F⎻ G⎻) (*CSC: was (F⎻ ∘ G⎻);*)
+  | #p; #q; nnormalize;
+    napply (.= (or_prop1 … G …)); (*CSC: it used to understand without G *)
+    napply (or_prop1 …)
+  | #p; #q; nnormalize;
+    napply (.= (or_prop2 … F …));
+    napply or_prop2
+  | #p; #q; nnormalize;
+    napply (.= (or_prop3 … G …));
+    napply or_prop3
+  ]
+##| #a;#a';#b;#b';#e;#e1;#x;nnormalize;napply (.= †(e x));napply e1]
+nqed.
+
+(*
+ndefinition OA : category2.
+split;
+[ apply (OAlgebra);
+| intros; apply (ORelation_setoid o o1);
+| intro O; split;
+  [1,2,3,4: apply id2;
+  |5,6,7:intros; apply refl1;] 
+| apply ORelation_composition;
+| intros (P Q R S F G H); split;
+   [ change with (H⎻* ∘ G⎻* ∘ F⎻* = H⎻* ∘ (G⎻* ∘ F⎻* ));
+     apply (comp_assoc2 ????? (F⎻* ) (G⎻* ) (H⎻* ));
+   | apply ((comp_assoc2 ????? (H⎻) (G⎻) (F⎻))^-1);
+   | apply ((comp_assoc2 ????? F G H)^-1);
+   | apply ((comp_assoc2 ????? H* G* F* ));]
+| intros; split; unfold ORelation_composition; simplify; apply id_neutral_left2;
+| intros; split; unfold ORelation_composition; simplify; apply id_neutral_right2;]
+qed.
+
+definition OAlgebra_of_objs2_OA: objs2 OA → OAlgebra ≝ λx.x.
+coercion OAlgebra_of_objs2_OA.
+
+definition ORelation_setoid_of_arrows2_OA: 
+  ∀P,Q. arrows2 OA P Q → ORelation_setoid P Q ≝ λP,Q,c.c.
+coercion ORelation_setoid_of_arrows2_OA.
+
+prefer coercion Type_OF_objs2.
+*)
+(* alias symbol "eq" = "setoid1 eq". *)