X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fcic_proof_checking%2FcicTypeChecker.ml;h=ead71900d7a1c3c3f4f666e4701077e1a8cddbb1;hb=18d8d7128c16b5d4dd589d75a2e7c026ac7d405d;hp=eb9d376f2aea3841eae4f0a96236bd5b690fceb9;hpb=26b754bcd3763fd7624637adab0635edefa1168f;p=helm.git

diff --git a/helm/software/components/cic_proof_checking/cicTypeChecker.ml b/helm/software/components/cic_proof_checking/cicTypeChecker.ml
index eb9d376f2..ead71900d 100644
--- a/helm/software/components/cic_proof_checking/cicTypeChecker.ml
+++ b/helm/software/components/cic_proof_checking/cicTypeChecker.ml
@@ -391,13 +391,8 @@ and weakly_positive context n nn uri te =
 *)
      C.Appl ((C.MutInd (uri',_,_))::tl) when UriManager.eq uri' uri -> true
    | C.MutInd (uri',0,_) when UriManager.eq uri' uri -> true
-   | C.Prod (C.Anonymous,source,dest) ->
-      strictly_positive context n nn
-       (subst_inductive_type_with_dummy_mutind source) &&
-       weakly_positive ((Some (C.Anonymous,(C.Decl source)))::context)
-        (n + 1) (nn + 1) uri dest
    | C.Prod (name,source,dest) when
-      does_not_occur ((Some (name,(C.Decl source)))::context) 0 n dest ->
+      does_not_occur ((Some (name,(C.Decl source)))::context) 0 1 dest ->
        (* dummy abstraction, so we behave as in the anonimous case *)
        strictly_positive context n nn
         (subst_inductive_type_with_dummy_mutind source) &&
@@ -508,14 +503,8 @@ and are_all_occurrences_positive context uri indparamsno i n nn te =
         raise (TypeCheckerFailure
          (lazy ("Non-positive occurence in mutual inductive definition(s) [3]"^
           UriManager.string_of_uri uri)))
-   | C.Prod (C.Anonymous,source,dest) ->
-       let b = strictly_positive context n nn source in
-       b &&
-       are_all_occurrences_positive
-        ((Some (C.Anonymous,(C.Decl source)))::context) uri indparamsno
-        (i+1) (n + 1) (nn + 1) dest
    | C.Prod (name,source,dest) when
-      does_not_occur ((Some (name,(C.Decl source)))::context) 0 n dest ->
+      does_not_occur ((Some (name,(C.Decl source)))::context) 0 1 dest ->
       (* dummy abstraction, so we behave as in the anonimous case *)
       strictly_positive context n nn source &&
        are_all_occurrences_positive
@@ -1647,6 +1636,7 @@ and type_of_aux' ~logger ?(subst = []) metasenv context t ugraph =
    | C.LetIn (n,s,ty,t) ->
       (* only to check if s is well-typed *)
       let ty',ugraph1 = type_of_aux ~logger context s ugraph in
+      let _,ugraph1 = type_of_aux ~logger context ty ugraph1 in
       let b,ugraph1 =
        R.are_convertible ~subst ~metasenv context ty ty' ugraph1
       in 
@@ -2002,7 +1992,7 @@ end;
        let (_,ty,_) = List.nth fl i in
 	 ty,ugraph2
 
- and check_exp_named_subst ~logger ~subst context ugraph =
+ and check_exp_named_subst ~logger ~subst context =
    let rec check_exp_named_subst_aux ~logger esubsts l ugraph =
      match l with
 	 [] -> ugraph
@@ -2028,7 +2018,7 @@ end;
 		 raise (TypeCheckerFailure (lazy "Wrong Explicit Named Substitution"))
                end
    in
-     check_exp_named_subst_aux ~logger [] ugraph 
+     check_exp_named_subst_aux ~logger []
        
  and sort_of_prod ~subst context (name,s) (t1, t2) ugraph =
   let module C = Cic in