Nice: cotransitivity proved.

[helm.git] / helm / software / matita / library / demo / realisability.ma

diff --git a/helm/software/matita/library/demo/realisability.ma b/helm/software/matita/library/demo/realisability.ma
index 0de10940ad64854bb9e716800bdbbdf8d588d80a..d1b569c4075ddc7abf362856eb683840b8e35d74 100644 (file)
--- a/helm/software/matita/library/demo/realisability.ma
+++ b/helm/software/matita/library/demo/realisability.ma
@@ -12,8 +12,6 @@
 (*                                                                        *)
 (**************************************************************************)
 
-set "baseuri" "cic:/matita/demo/realisability/".
-
 include "logic/connectives.ma".
 include "datatypes/constructors.ma".
 
@@ -59,7 +57,7 @@ definition pi2 ≝
   match s return λs.P (pi1 ? ? s) with
    [ sigma_intro _ p ⇒ p].
 
-notation "hvbox(Σ ident i opt (: ty) break . p)"
+notation "hvbox(\Sigma ident i opt (: ty) break . p)"
   right associative with precedence 20
 for @{ 'sigma ${default
   @{\lambda ${ident i} : $ty. $p}