-0.5.? - ?/?/? - ?
+0.5.5 - 17/11/2008 - bugfix release with students in mind
+ * by ... we proved fixed to use only the specified lemmas but
+ using full unification inside auto.
+ * new apply rule tactic, that exploits the goal type to
+ disambiguate the input term.
+ * new didactic/ library directory, with support for natural deduction
+ treese.
+
+0.5.4 - 19/10/2008 - bugfix release
+ * When a file is opened, the cursor is placed at the begin of the
+ buffer and not atthe end as before
+ * New macro eval
+ * More code in the direction of a fully functional matita status, that
+ improved undo reliability in the parser/notation modules
+ * matitac was seldom compiling up-to-date files, fixed
+ * Memory consumption durin proof construction cut down using Lazy.t
+ proof terms
+ * mstyle support in notation for text color, font size
+ * AutoGui now scales fonts to the correct user-requested size
+ * Non linear pattern matching from the level of terms to the
+ one of content in interpretation command (if the same variable name
+ is used, the two captured terms must be alpha equivalent to match)
+
+0.5.3 - 23/7/2008 - bugfix release
+ * many fixes concerning the CProp hiearchy
+ * coercion database simplified
+ * coercion hiding now works properly for coercions to funclass
+ * triangular pullback works better with coercions to the function space
+ * notation for lists fixed to add a break point after the separator
+ * notation for the existential is now user definable
+ * \infrule layout added, allows to display readable fractions
+ * better window for terms grammar and TeX/Unicode
+ * fixed a bug in the positivity check not considering some subterms
+ * fixed some GUI glitches thanks to glade-3
+
+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