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matita.cs.unibo.it Git - helm.git/log
Ferruccio Guidi [Sat, 2 Jun 2012 18:37:03 +0000 (18:37 +0000)]
- predefined_virtuals: an addition
- lambda_delta: lenv ref for native type assignment completed
levn ref for substitution correctly oriented
Wilmer Ricciotti [Fri, 1 Jun 2012 14:40:49 +0000 (14:40 +0000)]
Finalized copy sub-machine of the universal turing machine. Some new results
on lists.
Andrea Asperti [Fri, 1 Jun 2012 12:53:28 +0000 (12:53 +0000)]
Ci siamo quasi
Ferruccio Guidi [Fri, 1 Jun 2012 12:36:29 +0000 (12:36 +0000)]
update in basic_2
Ferruccio Guidi [Fri, 1 Jun 2012 12:34:16 +0000 (12:34 +0000)]
- predefined_virtuals: some additions
- lambda_delta: first results on lenv. ref. for native typing
some notational changes
Claudio Sacerdoti Coen [Thu, 31 May 2012 13:52:13 +0000 (13:52 +0000)]
Thanks to Guarrigue, code for Serializer functor simplified using
private types. The type system of OCaml is more and more misterious...
Wilmer Ricciotti [Thu, 31 May 2012 10:51:18 +0000 (10:51 +0000)]
Progress.
Ferruccio Guidi [Wed, 30 May 2012 21:12:25 +0000 (21:12 +0000)]
update in basic_2
Ferruccio Guidi [Wed, 30 May 2012 21:10:44 +0000 (21:10 +0000)]
- nDestructTac: Sys.break handled in two places
- lambda_delta: a major property of native type assignment
some properties of context sensitive equivalence
some notational changes
some annotations
Wilmer Ricciotti [Wed, 30 May 2012 14:20:28 +0000 (14:20 +0000)]
Progress.
Andrea Asperti [Wed, 30 May 2012 11:56:33 +0000 (11:56 +0000)]
some progress
Wilmer Ricciotti [Wed, 30 May 2012 09:11:08 +0000 (09:11 +0000)]
Progress.
Wilmer Ricciotti [Wed, 30 May 2012 08:35:51 +0000 (08:35 +0000)]
Progress.
Andrea Asperti [Tue, 29 May 2012 14:01:20 +0000 (14:01 +0000)]
The universal machine!!!
Andrea Asperti [Mon, 28 May 2012 16:42:25 +0000 (16:42 +0000)]
trans_step.ma
Andrea Asperti [Mon, 28 May 2012 14:02:42 +0000 (14:02 +0000)]
porting move_tape.ma
Andrea Asperti [Mon, 28 May 2012 13:47:38 +0000 (13:47 +0000)]
porting move_char_l.ma
Andrea Asperti [Mon, 28 May 2012 13:33:45 +0000 (13:33 +0000)]
porting of move_char_c
Andrea Asperti [Mon, 28 May 2012 12:13:49 +0000 (12:13 +0000)]
more typos
Andrea Asperti [Mon, 28 May 2012 12:11:59 +0000 (12:11 +0000)]
typos
Andrea Asperti [Mon, 28 May 2012 11:42:02 +0000 (11:42 +0000)]
graph of a function
Andrea Asperti [Mon, 28 May 2012 11:25:09 +0000 (11:25 +0000)]
FinOpt
Andrea Asperti [Mon, 28 May 2012 06:21:26 +0000 (06:21 +0000)]
mem, split
Wilmer Ricciotti [Mon, 28 May 2012 06:19:50 +0000 (06:19 +0000)]
Progress.
Ferruccio Guidi [Sat, 26 May 2012 12:47:48 +0000 (12:47 +0000)]
tentative specification of Conway's construction for surreal numbers
matita.opt game.ma crashes after 4 lines of code :((
Ferruccio Guidi [Fri, 25 May 2012 17:16:04 +0000 (17:16 +0000)]
update in basic_2
Ferruccio Guidi [Fri, 25 May 2012 17:10:54 +0000 (17:10 +0000)]
- substitution lemma for native type assignmenr proved!
- notation change in the support for abstract c.r.'s
- some minor additions
Wilmer Ricciotti [Fri, 25 May 2012 16:15:31 +0000 (16:15 +0000)]
Progress
Andrea Asperti [Fri, 25 May 2012 08:59:21 +0000 (08:59 +0000)]
Porting to the new defintion of finset
Andrea Asperti [Fri, 25 May 2012 08:58:36 +0000 (08:58 +0000)]
New definition of finset.
Andrea Asperti [Fri, 25 May 2012 07:12:54 +0000 (07:12 +0000)]
a bit faster
Wilmer Ricciotti [Thu, 24 May 2012 15:15:14 +0000 (15:15 +0000)]
Progress
Wilmer Ricciotti [Thu, 24 May 2012 09:52:31 +0000 (09:52 +0000)]
Progress
Wilmer Ricciotti [Wed, 23 May 2012 14:32:15 +0000 (14:32 +0000)]
Progress
Wilmer Ricciotti [Wed, 23 May 2012 09:52:17 +0000 (09:52 +0000)]
Progress
Wilmer Ricciotti [Tue, 22 May 2012 16:07:23 +0000 (16:07 +0000)]
Progress
Wilmer Ricciotti [Tue, 22 May 2012 14:27:50 +0000 (14:27 +0000)]
Progress
Wilmer Ricciotti [Tue, 22 May 2012 09:50:14 +0000 (09:50 +0000)]
Progress
Wilmer Ricciotti [Mon, 21 May 2012 16:57:38 +0000 (16:57 +0000)]
Progress.
Wilmer Ricciotti [Mon, 21 May 2012 11:57:26 +0000 (11:57 +0000)]
Added move_tape.ma
Wilmer Ricciotti [Mon, 21 May 2012 11:57:00 +0000 (11:57 +0000)]
Progress
Andrea Asperti [Mon, 21 May 2012 09:12:57 +0000 (09:12 +0000)]
New version of init copy
Wilmer Ricciotti [Fri, 18 May 2012 16:30:03 +0000 (16:30 +0000)]
Progress
Wilmer Ricciotti [Fri, 18 May 2012 15:43:37 +0000 (15:43 +0000)]
Progress
Andrea Asperti [Fri, 18 May 2012 11:24:56 +0000 (11:24 +0000)]
init_copy init_match
Wilmer Ricciotti [Fri, 18 May 2012 10:31:48 +0000 (10:31 +0000)]
Progress in semantics of the copy machine.
Ferruccio Guidi [Thu, 17 May 2012 20:11:06 +0000 (20:11 +0000)]
depenences fixup
Andrea Asperti [Thu, 17 May 2012 16:34:03 +0000 (16:34 +0000)]
init_match
Wilmer Ricciotti [Thu, 17 May 2012 16:33:59 +0000 (16:33 +0000)]
Progress
Wilmer Ricciotti [Thu, 17 May 2012 14:18:36 +0000 (14:18 +0000)]
Progress
Wilmer Ricciotti [Thu, 17 May 2012 14:12:45 +0000 (14:12 +0000)]
Added step machine for universal machine.
Claudio Sacerdoti Coen [Thu, 17 May 2012 11:40:37 +0000 (11:40 +0000)]
...
Claudio Sacerdoti Coen [Thu, 17 May 2012 11:37:49 +0000 (11:37 +0000)]
...
Claudio Sacerdoti Coen [Thu, 17 May 2012 11:33:34 +0000 (11:33 +0000)]
Efficient hashing used.
Claudio Sacerdoti Coen [Thu, 17 May 2012 11:32:52 +0000 (11:32 +0000)]
hash function exported
Claudio Sacerdoti Coen [Thu, 17 May 2012 11:26:24 +0000 (11:26 +0000)]
The lpo cache is now implemented as an hastbl for more performance
improvement. Probably it would be better with an ad-hoc hash-function.
Wilmer Ricciotti [Thu, 17 May 2012 09:28:06 +0000 (09:28 +0000)]
move tape right
Andrea Asperti [Thu, 17 May 2012 07:20:23 +0000 (07:20 +0000)]
filtering on a list without repetitions
Wilmer Ricciotti [Thu, 17 May 2012 07:04:54 +0000 (07:04 +0000)]
Added null character.
Claudio Sacerdoti Coen [Wed, 16 May 2012 23:32:12 +0000 (23:32 +0000)]
Added cache to lpo implementation.
The current cache is based on imperative lists.
Can it be improved with smarter data structures (e.g. HashTables?)
Claudio Sacerdoti Coen [Wed, 16 May 2012 22:25:03 +0000 (22:25 +0000)]
Orientation of equalities is now displayed.
Claudio Sacerdoti Coen [Wed, 16 May 2012 22:24:08 +0000 (22:24 +0000)]
Orientation of equalities is now displayed.
Claudio Sacerdoti Coen [Wed, 16 May 2012 20:33:41 +0000 (20:33 +0000)]
Removed duplicated notation and interaction with the user.
Ferruccio Guidi [Wed, 16 May 2012 20:30:28 +0000 (20:30 +0000)]
update in basic_2
Ferruccio Guidi [Wed, 16 May 2012 20:28:10 +0000 (20:28 +0000)]
- a caracterization of the top elements of the local evironment
refinement for substitution
- notation update for subsstitution and unfold
- added notation for True and False
Claudio Sacerdoti Coen [Wed, 16 May 2012 20:21:59 +0000 (20:21 +0000)]
Compare was not compatible with eq!
The first used alpha_eq, the second did not.
Now both do.
Claudio Sacerdoti Coen [Wed, 16 May 2012 19:28:27 +0000 (19:28 +0000)]
New, faster implementation of lpo checked against old one.
Old code removed.
Claudio Sacerdoti Coen [Wed, 16 May 2012 19:06:53 +0000 (19:06 +0000)]
Added alias instance=1 to avoid interaction with the user.
Andrea Asperti [Wed, 16 May 2012 13:26:58 +0000 (13:26 +0000)]
New implementation of lpo (the previous one was sometimes expnential)
Andrea Asperti [Wed, 16 May 2012 07:53:04 +0000 (07:53 +0000)]
a bit more
Claudio Sacerdoti Coen [Tue, 15 May 2012 23:20:33 +0000 (23:20 +0000)]
Pruning generalized from Vars to applied Vars.
Assert false since it can happen (???) that an equation
is oriented as ? M -> N :-(
Claudio Sacerdoti Coen [Tue, 15 May 2012 20:47:27 +0000 (20:47 +0000)]
Bug fixed in does_not_occur when a LetIn was found in the context.
Claudio Sacerdoti Coen [Tue, 15 May 2012 19:34:23 +0000 (19:34 +0000)]
print => debug
Claudio Sacerdoti Coen [Tue, 15 May 2012 19:26:03 +0000 (19:26 +0000)]
Patch by Ferruccio that enables \top/\bot for False/True undone.
This needs some rediscussion. In particular:
1) \top/\bot are also used as the (only?) symbols for bottom/top
in square lattices. Overloading is not a great idea in this case
(type vs term).
2) \bot is also traditionally used as the undefined value. For instance,
we use it in CerCo for (match ?:\bot in False with []) so that
you can use/apply \bot just to say that that case is undefined.
Interpretation can't be used for this because "match"es can't be used
in interpretations. Thus we use a notation which cannot be overloaded
and conflicts with Ferruccio's. Is there any other commonly used
symbol for undefined terms?
3) True/False are rarely used in statements. Do they really deserve
a symbol? (maybe they do)
The patch can be re-enabled by re-applying the inverse svn diff of this commit.
Wilmer Ricciotti [Tue, 15 May 2012 17:01:42 +0000 (17:01 +0000)]
Progress
Ferruccio Guidi [Tue, 15 May 2012 16:11:07 +0000 (16:11 +0000)]
we added the standard notation for True and False (logical constants)
Claudio Sacerdoti Coen [Tue, 15 May 2012 13:14:17 +0000 (13:14 +0000)]
Divergence during indexing fixed: (? t = t') was not recognized as too flexible.
Claudio Sacerdoti Coen [Tue, 15 May 2012 13:12:43 +0000 (13:12 +0000)]
Sys.Break no longer caught during indexing
Andrea Asperti [Tue, 15 May 2012 13:12:43 +0000 (13:12 +0000)]
sempre li
Wilmer Ricciotti [Tue, 15 May 2012 09:56:18 +0000 (09:56 +0000)]
Added universal machine (mockup)
Wilmer Ricciotti [Mon, 14 May 2012 16:41:07 +0000 (16:41 +0000)]
Added copy machine (mockup)
Andrea Asperti [Mon, 14 May 2012 16:37:56 +0000 (16:37 +0000)]
progresprogresss
-
Andrea Asperti [Mon, 14 May 2012 15:26:56 +0000 (15:26 +0000)]
almost there
Andrea Asperti [Mon, 14 May 2012 11:55:54 +0000 (11:55 +0000)]
progress
Wilmer Ricciotti [Fri, 11 May 2012 17:03:27 +0000 (17:03 +0000)]
Definition of the structure of the transition table of a
simulated Turing Machine.
Andrea Asperti [Fri, 11 May 2012 11:59:16 +0000 (11:59 +0000)]
poca roba
Andrea Asperti [Fri, 11 May 2012 11:23:40 +0000 (11:23 +0000)]
restructuring
Wilmer Ricciotti [Fri, 11 May 2012 10:29:56 +0000 (10:29 +0000)]
Finished wsem_compare proof.
Andrea Asperti [Fri, 11 May 2012 09:02:25 +0000 (09:02 +0000)]
progress
Wilmer Ricciotti [Thu, 10 May 2012 16:55:35 +0000 (16:55 +0000)]
Progress.
Ferruccio Guidi [Thu, 10 May 2012 16:02:55 +0000 (16:02 +0000)]
- notation changes in basic_2
Ferruccio Guidi [Thu, 10 May 2012 15:57:36 +0000 (15:57 +0000)]
- predefined_virtuals: an addition
- lambda_delta: some notation changes
Wilmer Ricciotti [Thu, 10 May 2012 15:49:45 +0000 (15:49 +0000)]
Progress.
Claudio Sacerdoti Coen [Thu, 10 May 2012 14:18:17 +0000 (14:18 +0000)]
Patch to improve the pretty-printing of error messages.
Moreover, when a delift creates an ill-typed term, a more
informative error message is printed (even if later
backtracking makes it irrelevant).
Ferruccio Guidi [Thu, 10 May 2012 11:06:02 +0000 (11:06 +0000)]
additions to basic_2
Ferruccio Guidi [Thu, 10 May 2012 10:58:45 +0000 (10:58 +0000)]
- lib: some additions
- lambda_delta: more properties on native type assignment
change of notation for consand append
Claudio Sacerdoti Coen [Thu, 10 May 2012 08:11:13 +0000 (08:11 +0000)]
Sys.Break no longer captured in two places.
Andrea Asperti [Thu, 10 May 2012 07:38:44 +0000 (07:38 +0000)]
axiomatization of acc_if
Wilmer Ricciotti [Wed, 9 May 2012 16:49:50 +0000 (16:49 +0000)]
Progress.
Wilmer Ricciotti [Wed, 9 May 2012 15:32:25 +0000 (15:32 +0000)]
Progress in compare.ma (some machines have been moved to tests.ma and marks.ma)