X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Fdist%2FChangeLog;h=8a1ea5ce78c6a0f32d1c68517c475bb0d3ad780f;hb=026c6c5b0e094b2e6e8244909bc5ac3d88b70b9c;hp=f03ee5e9e7e89b3c668fd15923efed89d20d3296;hpb=d0d1e16fcdc9d0a11317376a8ad41bd7ceadd5ed;p=helm.git

diff --git a/helm/software/matita/dist/ChangeLog b/helm/software/matita/dist/ChangeLog
index f03ee5e9e..8a1ea5ce7 100644
--- a/helm/software/matita/dist/ChangeLog
+++ b/helm/software/matita/dist/ChangeLog
@@ -1,3 +1,53 @@
+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.