X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Fdist%2FChangeLog;h=8a1ea5ce78c6a0f32d1c68517c475bb0d3ad780f;hb=62a12215bbf8686fab44e8db25babd3095983c8f;hp=804009ef5c09fb578bb7fc9505e52e4075a2353c;hpb=4ef0546be6fdf068e5a59951aa42895bebc0fa3a;p=helm.git

diff --git a/helm/software/matita/dist/ChangeLog b/helm/software/matita/dist/ChangeLog
index 804009ef5..8a1ea5ce7 100644
--- a/helm/software/matita/dist/ChangeLog
+++ b/helm/software/matita/dist/ChangeLog
@@ -1,6 +1,16 @@
-0.5.7 - .../01/2009 - Pàdoa release
-	* declaring a coercion twice now makes it the first choice
-	  (reordering)
+0.5.7 - 15/02/2009 - Pàdoa release
+	* are_convertible bug solved, arguments of application where 
+	  compared allowing cumulativity. This allowed to prove Type0=Type1.
+	* cases tactic speedup in the simplest case of an inductive type 
+	  hose right parameters have all to be abstracted when the outtype is
+	  built
+	* maction support added to output notation (adopted for "=" that 
+	  expands to "= \sub T" to show the equality type)
+	* generation of derived lemmas rewritten to be based on hooks that
+	  are triggered every definition
+	* composition of coercions fixed, more composite are generated
+	* undo mechanism for coercions remade, should work better
+	* new command "prefer coercion foo" to reorder coercions.
 	* UTF-8 eq classes and virtuals described in the manual and
 	  consistently printed in the TeX/UTF-8 table
 	* added a memory system for UTF-8 equivalence classes, so that