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44 commits

Author SHA1 Message Date
Leonardo de Moura
207e8e86da fix(library/definitional/equations): do not clear eliminated hypotheses when invoking 'cases' tactic from definitional package 2015-05-10 11:08:02 -07:00
Leonardo de Moura
57ea660963 refactor(*): start process for eliminating of opaque definitions from the kernel 
see issue #576
 2015-05-08 16:06:04 -07:00
Leonardo de Moura
326048df54 feat(library/tactic/inversion_tactic): clear variables that have been eliminated by cases tactic 
see discussion at:
https://groups.google.com/forum/#!topic/lean-discuss/oyzgIqdMyNc
 2015-05-02 19:33:59 -07:00
Leonardo de Moura
e1dc18f6b6 fix(library/tactic/inversion_tactic): check whether eliminator can only eliminate to Prop 
fixes #571
 2015-05-02 17:48:08 -07:00
Leonardo de Moura
9c8a63caec feat(library/tactic): add 'contradiction' tactic 
see issue #500

Remark: this tactic also applies no_confusion to take care of a contradiction
 2015-04-30 13:47:40 -07:00
Leonardo de Moura
697a536d9e fix(library/tactic/inversion_tactic): type incorrect term being built by 'cases' tactic 
fixes #545
 2015-04-20 19:24:52 -07:00
Leonardo de Moura
431eade894 fix(library/tactic/inversion_tactic): incorrect use of optimization 2015-04-20 16:21:44 -07:00
Leonardo de Moura
5bf46d1226 fix(library/tactic/inversion_tactic): improve 'cases' tactic for HoTT mode 
closes #481
 2015-03-23 18:06:11 -07:00
Leonardo de Moura
98cc325695 refactor(library/tactic/inversion_tactic): cleanup 2015-03-23 17:15:47 -07:00
Leonardo de Moura
aba158dbd4 feat(library/tactic/inversion_tactic): improve error message for unknown hypothesis 2015-03-13 15:19:19 -07:00
Leonardo de Moura
4ea323a2b2 refactor(library/tactic): cleanup common pattern 2015-03-12 14:52:41 -07:00
Leonardo de Moura
47a350d888 fix(library/tactic/inversion_tactic): missing condition for applying optimization 2015-03-12 09:11:36 -07:00
Leonardo de Moura
a7af8e7c71 feat(library/tactic/inversion_tactic): remove dummy hypotheses of the form (H : a = a) 
closes #468
 2015-03-11 20:50:06 -07:00
Leonardo de Moura
b5fb7c734e feat(library/tactic/inversion_tactic): remove hypothesis being destructed 
addresses second issue in #468
 2015-03-11 20:42:50 -07:00
Leonardo de Moura
ebdda67812 fix(library/tactic/inversion_tactic.cpp): remove unnecessary hypothesis in HoTT mode 
partial solution for #468
 2015-03-11 19:30:34 -07:00
Leonardo de Moura
737faecc65 feat(library/tactic/inversion_tactic): fail if is_hset type class synthesis produced term containing meta-variables, improve error messages 
fixes #467
 2015-03-11 15:54:50 -07:00
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
787fed95aa fix(library/tactic/inversion_tactic): bug in simpler case (hypotheses were being lost) 2015-02-23 16:10:49 -08:00
Leonardo de Moura
c311e0aba6 chore(library/tactic/inversion_tactic): cleanup 2015-02-01 10:47:32 -08:00
Leonardo de Moura
143143e94c fix(library/tactic/inversion_tactic): missing normalization step in the inversion_tactic 2015-02-01 10:38:30 -08:00
Leonardo de Moura
dbc8e9e13a refactor(*): add method get_num_univ_params 2015-01-28 17:22:18 -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
576c053c25 fix(library/tactic/inversion_tactic): bug at implementation_list update 2015-01-04 19:56:10 -08:00
Leonardo de Moura
762a515a5b feat(library/tactic/inversion_tactic): mark new arguments that have been "unified" into terms 2015-01-02 22:02:15 -08:00
Leonardo de Moura
3fb2d8bbc0 feat(library/tactic/inversion_tactic): use the "simpler" compilation approach in more cases 
The approach implemented in the commit 8974d70c11ef7b9b2c5d can be
extended to indexed inductive families. See comments in the code.
 2015-01-01 19:33:15 -08:00
Leonardo de Moura
be9e2500ce feat(library/tactic/inversion_tactic): add more efficient "compilation" for non-indexed inductive datatypes 2015-01-01 19:33:14 -08:00
Leonardo de Moura
57490a6431 feat(library/tactic/inversion_tactic): avoid unnecessary eq.rec's 2015-01-01 19:33:14 -08:00
Leonardo de Moura
761810f350 feat(library/tactic/inversion_tactic): generate auxiliary information 2015-01-01 19:33:14 -08:00
Leonardo de Moura
1f13bfa4f7 feat(library/tactic/inversion_tactic): add inversion::apply procedure 
The new procedure is essentially a "customized" version of the
inversion (aka cases) tactic for the equations package
 2015-01-01 19:33:14 -08:00
Leonardo de Moura
1d79cb9c07 fix(library/tactic/inversion_tactic): fix bug in 'cases' tactic for HoTT library 2014-12-22 09:40:15 -08:00
Leonardo de Moura
5efadb09cc feat(library/tactic/inversion_tactic): improve 'cases' tactic for HoTT library 
This commit adds support for hypotheses (h : C As idxs) where the indices idxs
are just local constants. Before this commit the indices idxs had to be hsets.
Now, they can be hsets or local constants.

The new tests demonstrate new examples that can be handled by the
improved tactic in the HoTT library
 2014-12-21 15:19:25 -08:00
Leonardo de Moura
677ec2a2fe feat(library/tactic/inversion_tactic): adjust inversion tactic to HoTT lib 2014-12-20 11:32:27 -08:00
Leonardo de Moura
59d403f7d8 fix(library/tactic/inversion_tactic): warning on clang++ 2014-12-03 21:14:10 -08:00
Leonardo de Moura
e6672b958f fix(library/tactic/inversion_tactic): add missing case 2014-12-01 19:11:44 -08:00
Leonardo de Moura
bc7ee2958f fix(library/tactic/inversion_tactic): bug in mutually recursive case 2014-12-01 18:32:38 -08:00
Leonardo de Moura
193fed7061 fix(library/tactic/inversion_tactic): uninitialized variable 2014-11-30 22:41:22 -08:00
Leonardo de Moura
a0d650d9cc fix(library/tactic/inversion_tactic): complete 'deletion' transition 2014-11-29 09:36:41 -08:00
Leonardo de Moura
e0debca771 feat(library/tactic/inversion_tactic): add 'case ... with ...' variant that allows user to specify names for new hypotheses 2014-11-28 22:25:37 -08:00
Leonardo de Moura
22b2f3c78c fix(library/tactic/inversion_tactic): bug in injectivity transition 2014-11-28 22:07:35 -08:00
Leonardo de Moura
a6be460166 feat(library/tactic/inversion_tactic): basic 'inversion' tactic 2014-11-28 21:56:13 -08:00
Leonardo de Moura
04dfda99ab fix(library/tactic/inversion_tactic): bug in name generation 2014-11-28 14:51:12 -08:00
Leonardo de Moura
13405b2bb0 fix(library/tactic/inversion_tactic): inversion tactic for datatypes with dependent elimination 2014-11-27 10:37:22 -08:00
Leonardo de Moura
5fff3113a9 refactor(library/tactic/inversion_tactic): add 'cases_on' step to inversion_tactic 2014-11-27 00:06:26 -08:00
Leonardo de Moura
ebd320a6b3 feat(library/tactic): add first step of 'inversion' tactic 2014-11-26 21:28:00 -08:00