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1571 commits

Author SHA1 Message Date
Leonardo de Moura
1fdbd681cc feat(frontends/lean/builtin_exprs): name hypothesis in suffices 
closes #817
 2015-09-03 16:09:39 -07:00
Leonardo de Moura
1dc1574ad4 fix(frontends/lean/parse_table): do not add 'no_info' annotation in tactic expressions 2015-09-02 20:51:06 -07:00
Leonardo de Moura
634c0b5e9d feat(library/tactic,frontends/lean): propagate new options back to elaborator 2015-09-02 20:34:14 -07:00
Leonardo de Moura
44c6e92a64 fix(tests/lean): notation ℕ is now defined in the top-level 2015-09-01 14:58:14 -07:00
Leonardo de Moura
c84e886c7b fix(frontends/lean/notation_cmd): fixes #808 
This commit and 2b1d2c fixes #808
 2015-08-31 18:05:58 -10:00
Leonardo de Moura
08169c5ac2 fix(library/unifier): fixes #809 
Daniel is correct when he says the interaction between choice
case-splits, delta case-splits, and coercions can be subtle.

I believe the following condition
https://github.com/leanprover/lean/blob/master/src/frontends/lean/elaborator.cpp#L111
reduces counter-intuitive behavior. Example, the coercion should not
influence the resulting type.
BTW, by removing this condition, many files in the library broke when I
tried to compile from scratch

      make clean-olean
      make

I used the following workaround. Given a delta-delta constraint

           f a =?= f b

If the terms are types, and no case-split will be performed, then
the delta-delta constraint is eagerly solved.
In principle, we don't need the condition that the terms are types.
However, many files break if we remove it. The problem is that many files in the standard
library are abusing the higher-order unification procedure. The
elaboration problems are quite tricky to solve.
I use the extra condition "the terms are types" because usually if they
are, "f" is morally injective, and we don't really want to unfold it.

Note that the following two cases do not work

     check '{1, 2, 3}
     check insert 1 (insert 2 (insert 3 empty))

Well, they work if we the num namespace is open, and they are
interpreted as having type (finset num)
 2015-08-31 17:59:30 -10:00
Leonardo de Moura
2b1d2c21ad fix(frontends/lean/util): bug when parsing priorities and numerals are overloaded 2015-08-31 15:08:21 -10:00
Leonardo de Moura
a3c404ac3b feat(library/tactic/apply_tactic): do not report elaboration failure in apply tactic when proof_state.report_failure() is false 2015-08-21 15:45:52 -07:00
Leonardo de Moura
87349dc355 feat(frontends/lean/token_table): add 'proposition' keyword 2015-08-19 08:05:31 -07:00
Leonardo de Moura
3a72cd9621 fix(frontends/lean): rename multiword keyword "suffices to show" to "suffices" 2015-08-18 17:57:53 -07:00
Leonardo de Moura
3ce8c5d6f7 feat(frontends/lean): add "suffices to show A, from B, C" construct 2015-08-18 17:04:38 -07:00
Leonardo de Moura
9fcf3d4675 fix(tests/lean/extra): discrepancy between tests output when compiling Lean with IGNORE_SORRY 2015-08-18 12:42:22 -07:00
Leonardo de Moura
21c41f50ea fix(frontends/lean/elaborator): fixes #803 2015-08-17 14:56:41 -07:00
Leonardo de Moura
b07a364d2f feat(frontends/lean/parser): process multiple parsing actions 
closes #800
 2015-08-17 09:42:10 -07:00
Leonardo de Moura
b0dbc31d4b test(tests/lean/list_vect_numerals): add test mixing nat,int,real,list,vector 2015-08-16 18:54:14 -07:00
Leonardo de Moura
ea04414058 feat(frontends/lean): allow user to overload notation containing foldr/foldl and/or scoped expressions 
see new tests for a summary of new features

see issue #800
 2015-08-16 18:24:30 -07:00
Leonardo de Moura
eb8f586dba fix(library/normalize): fixes #801 2015-08-16 14:22:02 -07:00
Leonardo de Moura
5a6a4b45c1 fix(library/definitional/equations): fixes #796 2015-08-14 14:39:23 -07:00
Leonardo de Moura
d2eb99bf11 refactor(library/logic): move logic/choice.lean to init/classical.lean 
choice axiom is now in the classical namespace.
 2015-08-12 18:37:33 -07:00
Leonardo de Moura
cb9830beaf refactor(library/logic/choice): move prop_decidable instance into namespace 'classical' 2015-08-12 17:06:15 -07:00
Leonardo de Moura
b4024982a2 refactor(library/data): move vector as indexed family to examples folder 2015-08-12 15:05:14 -07:00
Leonardo de Moura
602626803b fix(frontends/lean/builtin_cmds): 'print axioms' and theorem queue 2015-08-11 21:08:45 -07:00
Leonardo de Moura
5d8d226640 fix(frontends/lean/parser): add support for decimals 
Decimal numbers are notation for rationals.
If rat.of_num is not available, then an error is generated.

closes #793
 2015-08-11 18:44:48 -07:00
Leonardo de Moura
66a59d5b51 feat(frontends/lean/util): remove hack that overrides priority namespace 
closes #789
 2015-08-11 18:01:40 -07:00
Leonardo de Moura
0b8f57841a feat(frontends/lean/decl_cmds): closes #791 2015-08-11 17:53:33 -07:00
Jeremy Avigad
305f72bf4f fix(tests/lean): fix three tests broken by setext renaming 2015-08-09 22:14:25 -04:00
Leonardo de Moura
582dbecfd0 feat(library,hott): add notation T1 : T2 as syntax sugar for (focus (T1; all_goals T2)) 
closes #775
 2015-08-08 10:16:25 -07:00
Leonardo de Moura
1f34c72192 fix(frontends/lean/parser): fixes #770 2015-08-08 09:48:31 -07:00
Leonardo de Moura
dc2e702373 feat(library/unifier): generate approximate solution for universe constraints of the form (max u ?m =?= max u v) 
closes #777
 2015-08-08 09:29:59 -07:00
Leonardo de Moura
6c5832a564 feat(frontends/lean/decl_cmds): allow recursive examples 
closes #774
 2015-08-08 08:26:25 -07:00
Leonardo de Moura
06f20694c8 fix(frontends/lean/builtin_exprs): fixes #768 2015-08-08 04:20:17 -07:00
Leonardo de Moura
d46dbce86e feat(library/tactic/tactic): apply substitution in 'then' combinator 
closes #778
 2015-08-08 03:42:21 -07:00
Floris van Doorn
7f76d7e648 fix(tests): update test 2015-08-07 13:34:41 -07:00
Leonardo de Moura
5568085ab9 fix(frontends/lean/elaborator): closes #771 
Produce nicer error message when type/goal is a metavariable and
universe metavariables have already been instantiated with universe
parameters.
 2015-08-07 13:29:22 -07:00
Leonardo de Moura
6a079fdd2d fix(library/tactic/exact_tactic): fixes #779 2015-08-07 13:29:22 -07:00
Leonardo de Moura
f21647899f feat(frontends/lean/builtin_exprs): rename 'show' hidden name to 'this' 
This is useful if 'show' is recursive
 2015-08-07 13:29:21 -07:00
Floris van Doorn
11b1f416f6 feat(nat): add unfold attributes to add, mul, sub and of_num in namespace nat_esimp in both libraries 2015-08-04 13:23:20 +02:00
Floris van Doorn
7a780b1b60 feat(hott): various minor changes in the HoTT library 2015-08-04 13:01:11 +02:00
Leonardo de Moura
0309a1e131 fix(tests/lean/extra/show_goal_bag): adjust test to recent changes in the standard library 2015-08-04 06:52:20 +02:00
Leonardo de Moura
1f304ad4b9 fix(frontends/lean/pp): pretty printing 'binder' 
This commit also replaces many occurrences of 'binders' with 'binder'.
 2015-07-31 11:27:38 -07:00
Leonardo de Moura
656b642c4a fix(frontends/lean): identifier size when using unicode 
see issue #756
 2015-07-30 11:32:24 -07:00
Leonardo de Moura
cc4f18c062 feat(frontends/lean): add "--info" command line option for extracting identifier/keyword information 
see issue #756
 2015-07-30 10:18:03 -07:00
Leonardo de Moura
be61fb0566 feat(frontends/lean/elaborator): add "noncomputable theory" command, display "noncomputable" when printing definitions 
When the command "noncomputable theory" is used, Lean will not sign an
error when a noncomputable definition is not marked as noncomputable
 2015-07-29 17:54:35 -07:00
Leonardo de Moura
b3707ab54a feat(library/tactic/unfold_rec): fixes #753 2015-07-29 17:13:02 -07:00
Leonardo de Moura
ed41a01a51 fix(frontends/lean/elaborator): fixes #755 2015-07-29 16:41:30 -07:00
Leonardo de Moura
bbd6946a15 refactor(library/logic/axioms): we have only one extra axiom 2015-07-29 13:36:23 -07:00
Leonardo de Moura
6dbcf86fd4 feat(library/logic/axioms): use diaconescu to prove em 
With the new "noncomputable" feature we can use Hilbert's choice without
being concerned it may accidentaly "leak" inside definitions we don't
want to use it.
 2015-07-29 13:01:07 -07:00
Leonardo de Moura
0bda39c8ac feat(frontends/lean): check for noncomputability when moving theorems from theorem_queue to environment 2015-07-29 13:01:07 -07:00
Leonardo de Moura
69ead0ddd8 feat(frontends/lean/decl_cmds): reject unnecessary "noncomputable" annotations 2015-07-29 13:01:07 -07:00
Leonardo de Moura
74be3031b1 feat(frontends/lean/decl_cmds): sign an error if "noncomputable" keyword is used in the HoTT library or with non-definitions 2015-07-29 13:01:06 -07:00