Leonardo de Moura
613281d622
fix(frontends/lean/builtin_exprs): bug in new 'obtain' expression
2015-05-06 10:01:24 -07:00
Leonardo de Moura
26c662accd
feat(frontends/lean/builtin_exprs): improve new 'obtain' expression
2015-05-06 09:56:57 -07:00
Leonardo de Moura
7cd444882c
feat(frontends/lean): add 'begin+' and 'by+' that enter tactic mode with the whole context visible
2015-05-05 18:47:25 -07:00
Leonardo de Moura
616f49c2e4
feat(frontends/lean): improved 'obtains' expression
2015-05-05 18:30:16 -07:00
Leonardo de Moura
87aaf373f4
fix(frontends/lean): fix '#' override notation on the left-hand-side of recursive equations (and match-expressions)
2015-05-03 21:08:09 -07:00
Leonardo de Moura
441f1f9fe2
feat(frontends/lean): import error message for "unknown" tactics when parsing
2015-05-02 18:57:58 -07:00
Leonardo de Moura
a23118d357
feat(frontends/lean): add tactic_notation command
...
This addresses the first part of issue #461
We still need support for tactic definitions
2015-04-27 17:46:13 -07:00
Leonardo de Moura
9d01868361
feat(frontends/lean): use rewrite tactic to implement unfold (it has a unfold step)
...
closes #502
2015-04-24 17:23:12 -07:00
Leonardo de Moura
107763a506
fix(frontends/lean): better error message for 'proof ... qed' blocks containing unsolved placeholders
2015-04-20 15:50:37 -07:00
Leonardo de Moura
2bc13f6bfd
feat(library/tactic/exact): enforce goal type during elaboration when executing 'exact' tactic
...
Remark: this was the behavior of the 'sexact' tactic.
This commit also adds the 'rexact' (relaxed exact) tactic which does not
enforce the goal type.
closes #495
2015-04-06 13:23:38 -07:00
Leonardo de Moura
8c59f17605
feat(frontends/lean): 'using' expression without 'show' or 'have'
...
closes #536
2015-04-04 15:25:07 -07:00
Leonardo de Moura
0c3fd7427e
feat(frontends/lean): add syntax-sugar for fold
...
closes #503
2015-03-25 18:25:48 -07:00
Leonardo de Moura
fc3a7bac59
feat(frontends/lean): improve error handling inside match-with expressions
2015-03-13 23:25:46 -07:00
Leonardo de Moura
9438366e37
feat(frontends/lean/builtin_exprs): better error synchronization for 'begin...end' blocks
2015-03-13 15:22:57 -07:00
Leonardo de Moura
f966634910
feat(frontends/lean): nested dependent pattern matching
2015-03-06 19:18:08 -08:00
Leonardo de Moura
1490bdad49
feat(frontends/lean): add version of 'exact' tactic (sexact) that enforces goal type during term elaboration
2015-03-06 17:34:45 -08:00
Leonardo de Moura
bd8c4315f1
feat(frontends/lean): allow 'match-with' to be used in tactics without prefixing it with 'exact'
2015-03-06 15:49:31 -08:00
Leonardo de Moura
daf36803c4
fix(frontends/lean/builtin_exprs): bug in 'using' construct
2015-03-06 13:56:20 -08:00
Leonardo de Moura
368f9d347e
refactor(frontends/lean): approach used to parse tactics
...
The previous approach was too fragile
TODO: we should add separate parsing tables for tactics
2015-03-05 18:11:21 -08:00
Leonardo de Moura
039afb4578
feat(frontends/lean): treat "proof t qed" as alias for "by exact t"
2015-03-05 11:12:39 -08:00
Leonardo de Moura
c8ad5e9406
feat(frontends/lean/builtin_exprs): focus on have-tactic goal
2015-03-01 13:43:33 -08:00
Leonardo de Moura
c04c610b7b
feat(frontends/lean): add 'assert H : A, ...' as notation for 'have H [visible] : A, ...'
2015-02-25 14:30:42 -08:00
Leonardo de Moura
96b54a8007
feat(frontends/lean/builtin_exprs): add 'have' notation in 'begin-end' blocks
...
It is notation for the assert tactic.
2015-02-25 14:04:17 -08:00
Leonardo de Moura
1ff6446a63
feat(frontends/lean): nested begin-end blocks
2015-02-24 11:59:27 -08:00
Leonardo de Moura
666f697d24
fix(frontends/lean/builtin_exprs): 'using' expression should make local constant available for tactics
2015-02-08 17:27:22 -08:00
Leonardo de Moura
5b25da8c43
feat(frontends/lean): add esimp tactic based on rewrite tactic
...
closes #358
2015-02-06 14:13:32 -08:00
Leonardo de Moura
b6dd1269b9
feat(frontends/lean/builtin_exprs): make 'obtain' arguments visible by default
2015-02-05 10:38:45 -08:00
Leonardo de Moura
c845e44777
feat(frontends/lean): parse rewrite tactic
2015-02-04 11:51:39 -08:00
Leonardo de Moura
27f6bfd3f0
refactor(*): add file constants.txt with all constants used by the Lean binary
2015-01-23 16:50:32 -08:00
Leonardo de Moura
002050fa97
feat(frontends/lean): increase binding power of ! and @
...
Remark: I did not add the constant "app".
Reason: It would break the standard library in many places.
Moreover, the current "max" is not just the binding power of
application, but also the binding power of identifiers, (, [, ...
It would be weird to call it "app"
closes #388
2015-01-19 18:40:33 -08:00
Leonardo de Moura
f9d7480f5c
feat(frontends/lean): notation for creating structure instances
2015-01-16 17:14:30 -08:00
Leonardo de Moura
13660cfecd
feat(frontends/lean/parser): add parse_qualified_expr
2015-01-16 12:42:42 -08:00
Leonardo de Moura
b172229a72
feat(frontends/lean): add 'match' expressions
...
We reuse the equations infrastructure to compile them.
2015-01-10 10:11:13 -08:00
Leonardo de Moura
5cf8064269
refactor(library): rename exists_elim and exists_intro to exists.elim
...
and exists.intro
2014-12-15 19:07:38 -08:00
Leonardo de Moura
bf875d5778
feat(library/definitional/equations): add support for inaccessible patterns
2014-12-10 12:35:08 -08:00
Leonardo de Moura
52334dca29
feat(frontends/lean): parse "decreasing" expressions
2014-12-04 15:11:23 -08:00
Leonardo de Moura
e72c4977f0
feat(frontends/lean): nicer notation for dependent if-then-else
2014-12-04 11:13:09 -08:00
Leonardo de Moura
64686c1278
feat(frontends/lean): allow user to associate precedence to binders, closes #323
2014-11-23 17:30:46 -08:00
Leonardo de Moura
fa405d7884
refactor(frontends/lean): combine info annotations in a single module
2014-11-04 18:01:20 -08:00
Leonardo de Moura
a2ef835809
fix(frontends/lean): squiggle position for unary begin-end block
2014-10-28 23:26:24 -07:00
Leonardo de Moura
eeb6c72508
feat(frontends/lean): modify begin-end semantics, closes #258
2014-10-28 22:15:38 -07:00
Leonardo de Moura
60f32fa709
fix(frontends/lean): begin-end automatic tactic notation bug, fixes #262
2014-10-27 17:12:25 -07:00
Leonardo de Moura
cc6a96e8ba
fix(frontends/lean): improve begin-end construct
2014-10-26 15:47:29 -07:00
Leonardo de Moura
8e6de93394
fix(frontends/lean/parser): add two kinds of no_undef_id behavior: to (global) constant; to local constant
2014-10-26 09:47:11 -07:00
Leonardo de Moura
212ae0b61c
feat(frontends/lean): automatically add 'info' tactic in begin-end blocks
...
Actually, the tactic is only added when Lean is in collect-info mode.
2014-10-23 13:30:04 -07:00
Leonardo de Moura
38a9aa2a98
feat(frontends/lean): automatically open 'tactic' namespace (if it is not already open) in 'by' and 'begin-end' expressions
2014-10-23 10:26:19 -07:00
Leonardo de Moura
eb2b59ce4f
refactor(frontends/lean): remove unnecessary files
2014-10-22 17:33:16 -07:00
Leonardo de Moura
5e15ac0c92
feat(library/tactic): add new approach for embedding non-elaborated expressions into tactics
2014-10-22 17:29:50 -07:00
Leonardo de Moura
7c617955d0
refactor(library/tactic): move 'exact' tactic to separate module
2014-10-22 17:29:44 -07:00
Leonardo de Moura
9b8f60b739
feat(frontends/lean/builtin_exprs): tolerate dangling ',' in begin-end block
...
This is useful when debugging proofs.
2014-10-20 15:59:49 -07:00
