1 0.5.8 - 02/12/2009 - toward the 1.x series
2 * Complete rewriting of paramodulation code (thanks to Maxime Denes),
3 that is abstract over the data type embedded in the fisrt order
4 theory the procedure is able to handle.
5 Can be used as a stand-alone prover, and partecipated
6 to the CASC22 beating many older systems ;-)
7 * new (compact) kernel:
9 * height (inter object dependency) driven conversion
10 * compact metavariable representation
11 * experimental irrelevant arguments handling in convesion
12 (in the spirit of proof irrelevance)
13 * explicit predicative universes
15 * bi-directional type inference
17 * implicit vector (expands to the right number of implicits)
19 * new type for tactics, with a global view on the ongoing proof
20 * heavily based on the refiner
21 * work with terms labelled with their contexts
22 * new auto (prolog like) proof search tactic:
23 * works on a set of goals
24 * non uniform context support:
25 * arbitrary tactics can be called to attack a goal (hardcoded
26 at the OCaml level), for now just apply and intro
28 * the standard library (now we have two of them) is not
29 distributed pre-compiled
30 * standard library .ma files can be included from everywhere since
31 they are in a standard path
32 * including a file of the standard library triggers its compilation
34 * gtksourceview2 based text widget (lablgtk >= 2.14)
36 0.5.7 - 15/02/2009 - PĂ doa release
37 * are_convertible bug solved, arguments of application where
38 compared allowing cumulativity. This allowed to prove Type0=Type1.
39 * cases tactic speedup in the simplest case of an inductive type
40 hose right parameters have all to be abstracted when the outtype is
42 * maction support added to output notation (adopted for "=" that
43 expands to "= \sub T" to show the equality type)
44 * generation of derived lemmas rewritten to be based on hooks that
45 are triggered every definition
46 * composition of coercions fixed, more composite are generated
47 * undo mechanism for coercions remade, should work better
48 * new command "prefer coercion foo" to reorder coercions.
49 * UTF-8 eq classes and virtuals described in the manual and
50 consistently printed in the TeX/UTF-8 table
51 * added a memory system for UTF-8 equivalence classes, so that
52 last choice is remembered and attempted first next time the same
53 eq class is walked trough
54 * some core notation fixed to allow a better setoid-path
55 representation (foo ^-1 changed precedence)
56 * matita manual updated with a section regarding the usage of
57 the liveCD with the VirtualBox emulator
58 * liveCD fixed to allow to easily mount/unmount real host folders
60 * ttf-freefont package added to the liveCD together with gucharmap
61 * coercions from convertible types are not inserted for real, they
62 just behave as hints for the unification algorithm
63 * virtuals (eq classes) fixed w.r.t. greek letters
64 * some virtuals added to ease the writing of diamond (<>), box ([])
66 * code that generates eliminators fixed to use whd ~delta set to true
67 when counting products, this allows to used definitions as inductive
69 * match ... with rendering fixed to break the box containing
70 constructors arguments if needed (i.e. record projections
71 are now almost readable)
72 * fixed pattern matching over ast terms, Ast.Case construct can be
73 matched correctly. Look the o-algebra example if you are
75 * Mpadded MathML tag can be used in notation, it allows to overlap
76 symbols reducing the bounding box size
78 0.5.6 - 1/12/2008 - bugfix release
79 * more abstract disambiguation algorithm, simpler instantiation
80 to a different CIC/refiner
81 * natural deduction support improved in the first order case
82 * natural deduction lem rule does now support lemmas
83 with (up to) 3 premises (multicut rule, displayed as
86 0.5.5 - 17/11/2008 - bugfix release with students in mind
87 * by ... we proved fixed to use only the specified lemmas but
88 using full unification inside auto.
89 * new apply rule tactic, that exploits the goal type to
90 disambiguate the input term.
91 * new didactic/ library directory, with support for natural deduction
94 0.5.4 - 19/10/2008 - bugfix release
95 * When a file is opened, the cursor is placed at the begin of the
96 buffer and not atthe end as before
98 * More code in the direction of a fully functional matita status, that
99 improved undo reliability in the parser/notation modules
100 * matitac was seldom compiling up-to-date files, fixed
101 * Memory consumption durin proof construction cut down using Lazy.t
103 * mstyle support in notation for text color, font size
104 * AutoGui now scales fonts to the correct user-requested size
105 * Non linear pattern matching from the level of terms to the
106 one of content in interpretation command (if the same variable name
107 is used, the two captured terms must be alpha equivalent to match)
109 0.5.3 - 23/7/2008 - bugfix release
110 * many fixes concerning the CProp hiearchy
111 * coercion database simplified
112 * coercion hiding now works properly for coercions to funclass
113 * triangular pullback works better with coercions to the function space
114 * notation for lists fixed to add a break point after the separator
115 * notation for the existential is now user definable
116 * \infrule layout added, allows to display readable fractions
117 * better window for terms grammar and TeX/Unicode
118 * fixed a bug in the positivity check not considering some subterms
119 * fixed some GUI glitches thanks to glade-3
121 0.5.2 - 2/7/2008 - better-usability-for-the-working-constructivist release
122 * refinement of match fixed to prevent useless unfolding,
123 head_beta_reduce is used instead of whd ~delta:true
124 * CProp hierarchy, interleaved with type (used to be a single universe)
125 * Notation now allows to set the precedence level of subterms, avoiding
126 unnecessary parenthese
127 * UTF-8 / TeX conversion table is now available in the Help menu
128 * Notation subsystem described in the manual
129 * EBNF term grammar is now available in the View menu (and is in sync with
130 the currently loaded notation)
131 * Rewrite tactic (in hypothesis) now computes the right sort and
132 uses the right equality elimination principle
133 * URI free interpretation and coercion statements (scripts are almost
135 * elim and cases tactic now support a pattern to specify hypotheses that
136 are generalized before the elimination.
138 0.5.1 - 29/5/2008 - minor bug fix release
139 * visualization of inductive types reports the number of fixed parameters
140 * a wrong context was used to refine fixpoints arguments
141 when trying to optimize out the letin (grep for `AvoidLetIn):
142 (let rec f x = Fix... in f t ---> Fix... t)
143 * auto fixed to prefer goals with metavariables to closed ones,
144 added new syntax to specify the universe "auto by t1, t2, ...",
145 updated documentation describing all auto parameters
146 * declarative language syntax and documentation ported to the new
149 0.5.0 - 9/5/2008 - bugfix release
150 * first release not considered experimental
152 0.4.98 - ??/11/2007 - bugfix release
153 * compiles against camlp5 >= 5.0
154 * changed lablgtksourceview module name since it is now part of lablgtk2
156 0.4.97 - 16/11/2007 - initial release