- we replaced a normalize with a whd in the classification algorithm

[helm.git] / helm / software / matita / dist / ChangeLog

diff --git a/helm/software/matita/dist/ChangeLog b/helm/software/matita/dist/ChangeLog
index baad226d12550fdf41df82aa375df4800829b175..f6e640278f7551bb02c0be6decf8a0a7c8721a38 100644 (file)
--- a/helm/software/matita/dist/ChangeLog
+++ b/helm/software/matita/dist/ChangeLog
@@ -1,4 +1,21 @@
-0.5.1  - -/5/2008 - minor bug fix release
+0.5.2  - 2/7/2008 - better-usability-for-the-working-constructivist release
+       * refinement of match fixed to prevent useless unfolding,
+         head_beta_reduce is used instead of whd ~delta:true
+       * CProp hierarchy, interleaved with type (used to be a single universe)
+       * Notation now allows to set the precedence level of subterms, avoiding
+         unnecessary parenthese
+       * UTF-8 / TeX conversion table is now available in the Help menu
+       * Notation subsystem described in the manual
+       * EBNF term grammar is now available in the View menu (and is in sync with
+         the currently loaded notation)
+       * Rewrite tactic (in hypothesis) now computes the right sort and
+         uses the right equality elimination principle
+       * URI free interpretation and coercion statements (scripts are almost
+         relocatable now)
+       * elim and cases tactic now support a pattern to specify hypotheses that 
+         are generalized before the elimination. 
+
+0.5.1  - 29/5/2008 - minor bug fix release
        * visualization of inductive types reports the number of fixed parameters
        * a wrong context was used to refine fixpoints arguments
          when trying to optimize out the letin (grep for `AvoidLetIn):