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

diff --git a/helm/software/matita/dist/ChangeLog b/helm/software/matita/dist/ChangeLog
index 66d728fa3b638bf0b4987659b365251d8dc43e75..8a1ea5ce78c6a0f32d1c68517c475bb0d3ad780f 100644 (file)
--- a/helm/software/matita/dist/ChangeLog
+++ b/helm/software/matita/dist/ChangeLog
@@ -1,4 +1,65 @@
-0.5.v  - dd/mm/yyy - bugfix release
+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
+         last choice is remembered and attempted first next time the same
+         eq class is walked trough
+       * some core notation fixed to allow a better setoid-path
+         representation (foo ^-1 changed precedence)
+       * matita manual updated with a section regarding the usage of 
+         the liveCD with the VirtualBox emulator
+       * liveCD fixed to allow to easily mount/unmount real host folders
+         with VirtualBox
+       * ttf-freefont package added to the liveCD together with gucharmap
+       * coercions from convertible types are not inserted for real, they
+         just behave as hints for the unification algorithm
+       * virtuals (eq classes) fixed w.r.t. greek letters
+       * some virtuals added to ease the writing of diamond (<>), box ([])
+         and upper bar (_).
+       * code that generates eliminators fixed to use whd ~delta set to true
+         when counting products, this allows to used definitions as inductive
+         type ariety.
+       * match ... with rendering fixed to break the box containing
+         constructors arguments if needed (i.e. record projections
+         are now almost readable)
+       * fixed pattern matching over ast terms, Ast.Case construct can be
+         matched correctly. Look the o-algebra example if you are
+         intereseted.
+       * Mpadded MathML tag can be used in notation, it allows to overlap
+         symbols reducing the bounding box size 
+
+0.5.6 - 1/12/2008 - bugfix release
+       * more abstract disambiguation algorithm, simpler instantiation
+         to a different CIC/refiner
+       * natural deduction support improved in the first order case
+       * natural deduction lem rule does now support lemmas 
+         with (up to) 3 premises (multicut rule, displayed as
+         a collapsed tree)
+
+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