Leonardo de Moura
c0267727a8
fix(library/init/meta): mk_fresh_name should not be used to create user facing names
...
The tactic `mk_fresh_name` is used to create internal unique ids.
We should not use them to create (temporary) user facing
names. Reasons:
1- They are "cryptic".
2- They are not very stable. Minor changes in Lean may change the
value returned and may break proofs that rely on these fresh names.
2018-02-26 10:49:53 -08:00
Leonardo de Moura
21812768b0
fix(library/init/meta/interactive): fixes #1889
2018-02-23 12:39:11 -08:00
Leonardo de Moura
24e7a5a339
feat(library/tactic): add frozen_local_instances tactic for retrieving list of frozen local instances
2018-02-23 11:39:38 -08:00
Leonardo de Moura
db4fcac40c
feat(library): add tactic unfreeze_local_instances
2018-02-23 11:12:05 -08:00
Leonardo de Moura
46ed0ad677
refactor(library/congr_lemma): remove mk_rel_iff_congr_lemma and mk_rel_eq_congr_lemma
2018-02-21 15:04:20 -08:00
Leonardo de Moura
afb65f3d3d
feat(library/init/meta/comp_value_tactics): add comp_val interactive tactic
2018-02-21 10:35:26 -08:00
Leonardo de Moura
61930c3d85
fix(library/init/meta/comp_value_tactics): instantiate metavars
2018-02-21 10:28:27 -08:00
Scott Morrison
5d094cf835
cleanup(init/meta/tactic) removing obsolete meta constants
2018-02-13 10:45:04 -08:00
Leonardo de Moura
9331945e8b
fix(library/init/meta/interactive): alternative fix for issue at #1913
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We also document the problem to make sure we don't spend time again
trying to understand the workaround. This is an instance of a bigger
problem that should be addressed later.
2018-01-28 09:07:11 -08:00
Leonardo de Moura
1c61129d40
feat(library/init/meta/tactic): expose approx at unify and is_def_eq tactics
2018-01-25 22:27:18 -08:00
Leonardo de Moura
368f17d0b1
feat(library/tactic/simplify): add simp!
2018-01-16 17:29:24 -08:00
Leonardo de Moura
c195d7c2a1
feat(library/tactic/simp_tactic): improve mk_simp_attr
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- An new simp attribute may depend on other existing attributes
- Add `[norm]` simp attribute. It is an extension of the default `[simp]` attribute.
It should be used to add extra rules for normalizing goals.
These extra rules are used to produce normal forms and/or reduce the
number of constants used in a goal. Here is an example coming from a
discussion with @kha. When working with monads, we may want to
eliminate `<$>` by using the lemma `f <$> x = x >>= pure ∘ f`.
This lemma is in the `[norm]` simp set, but it is not in `[simp]`
2018-01-16 16:47:30 -08:00
Leonardo de Moura
cebde17bec
feat(library/tactic/simplify): simp reduces c a_1 ... a_n = c b_1 ... b_n into a_1 = b_1 /\ ... /\ a_n = b_n
2018-01-12 18:18:56 -08:00
Leonardo de Moura
9eb22cd548
feat(library/constructions/injective): automatically generate auxiliary lemma *.inj_eq for constructors
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We are going to use these lemmas in the simplifier.
2018-01-12 16:41:12 -08:00
Leonardo de Moura
58fce78282
feat(library/init/meta/interactive): add interactive tactic subst_vars
2018-01-12 14:37:11 -08:00
Leonardo de Moura
5bad6d5372
feat(library/init/meta/tactic): subst supports heterogeneous equalities that are actually homogeneous
2018-01-12 14:32:49 -08:00
Leonardo de Moura
4bd314f7bd
feat(library/tactic/simplify): simp reduces c_1 ... = c_2 ... to false
2018-01-12 11:30:45 -08:00
Leonardo de Moura
56920639fa
chore(library/init/meta/coinductive_predicates): remove old comment
2018-01-12 10:56:39 -08:00
Leonardo de Moura
c3d4a9456e
feat(library/init/meta/interactive): add sorry interactive tactic (alias for admit).
2018-01-11 16:58:46 -08:00
Leonardo de Moura
587540f11b
feat(frontends/lean): add abbreviation command
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This command is not just a cosmetic feature.
We need it to defined `id_rhs` before the tactic framework is defined.
We want `id_rhs` to be used in all definitions generated by the equation
compiler. Right now, it is only used in definitions defined after the
tactic framework.
2018-01-05 15:40:59 -08:00
Leonardo de Moura
43d7bac49b
feat(library/init/meta): add support for new unify at rw tactic
2018-01-04 13:05:55 -08:00
Leonardo de Moura
040722c7e7
feat(library/init/meta): add unify config option to apply_cfg
...
This commit also fixes a problem in the `apply` tactic error messages.
2018-01-04 12:51:59 -08:00
Leonardo de Moura
f0352d31a1
feat(library/type_context, library): inout ==> out modifier in type class declarations
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@kha: I decided to implement this change before I start the
type_context modifications. The change did not affect the corelib and
test suite much. The only annoying problem is that `out` cannot be
used to name locals anymore.
2017-12-15 14:46:47 -08:00
Leonardo de Moura
746134d11c
feat(library/init/meta/interactive): add goal tagging support for by_cases
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This commit also incorporates changes suggested at commit 84a1911949dec94.
2017-12-13 15:17:13 -08:00
Leonardo de Moura
cb74ef1670
chore(library/init/meta/interactive): fix docstring
2017-12-11 16:27:04 -08:00
Leonardo de Moura
533ddc0279
fix(library/init/meta/interactive): remove buggy generalizing param from with_cases
2017-12-11 16:27:04 -08:00
Leonardo de Moura
5217ae735d
feat(library/init/meta/interactive): do not make tag longer when constructor/apply create a single subgoal
2017-12-11 16:27:03 -08:00
Leonardo de Moura
f0231f17bc
feat(library/init/meta): propagate tags in constructor-like tactics
2017-12-11 16:27:03 -08:00
Leonardo de Moura
ebeb5f713a
feat(library/init/meta/interactive): do not make tag longer when induction/cases create a single subgoal
2017-12-11 16:27:03 -08:00
Leonardo de Moura
8bda71af6f
feat(library/init/meta/interactive): new case tactic with support for with_cases and tagging
2017-12-11 16:27:03 -08:00
Leonardo de Moura
d44996e034
feat(library/init/meta): propagate tag information
2017-12-10 19:15:41 -08:00
Leonardo de Moura
e23db3970a
feat(library/init/meta/tactic): apply tactic return parameter name associated with new metavars
2017-12-10 12:11:58 -08:00
Leonardo de Moura
41cfa1bf63
feat(library/init/meta/tactic): induction tactic returns constructor/param names
2017-12-10 09:46:39 -08:00
Leonardo de Moura
8577fe6984
fix(library/init/meta/interactive): induction ... generalizing ... bug
2017-12-10 08:57:25 -08:00
Leonardo de Moura
f288205cce
feat(library/tactic): goal tagging
2017-12-09 16:29:03 -08:00
Leonardo de Moura
24d5a1592d
fix(library/init): add simp lemmas for auto_param and opt_param
2017-12-09 09:59:00 -08:00
Leonardo de Moura
623ff2454b
chore(library/init/meta/interactive): remove TODO
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We now have `whnf_ginductive`
2017-12-08 11:47:20 -08:00
Leonardo de Moura
49e7a642c3
feat(library/init/meta/interactive): merge ginduction and induction
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This commit is based on 638b34b16de6443.
The changes were applied manually to make sure all changes are
compatible with our plans to `induction`.
2017-12-07 19:10:10 -08:00
Leonardo de Moura
84db9e9e43
feat(library/init/meta/interactive): add constructor_matching tactic
2017-12-06 13:17:06 -08:00
Leonardo de Moura
c89e2457bb
feat(library/init/meta/interactive): add cases_type tactic
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see doc/changes.md
2017-12-06 12:55:10 -08:00
Leonardo de Moura
4f1f15a425
refactor(library/init/meta/match_tactic): cleanup match_tactic interface
2017-12-06 12:52:41 -08:00
Leonardo de Moura
a056e87350
fix(library/init/meta/injection_tactic): add support for ginductive datatypes
2017-12-06 09:39:20 -08:00
Leonardo de Moura
03eda2ecc0
feat(library/init/meta/interactive): add cases_matching p tactic
2017-12-05 18:17:44 -08:00
Leonardo de Moura
b06549bc05
feat(library/init/meta): add guard_names { t } tactical
2017-12-05 16:29:46 -08:00
Leonardo de Moura
0c5ecf6441
feat(library/init/meta/interactive): add iterate n { t }
2017-12-05 12:52:18 -08:00
Leonardo de Moura
6f943d77a2
feat(library/init/meta/interactive): add match_target pat interactive tactic
2017-12-05 12:25:17 -08:00
Leonardo de Moura
b1e8270172
chore(library/init/meta/match_tactic): fix typo
2017-12-05 12:11:04 -08:00
Leonardo de Moura
b5358b1b3e
chore(library/init/meta/interactive): add comment to avoid confusion
2017-12-05 12:07:17 -08:00
Leonardo de Moura
c943576e5a
feat(library/init): add funext tactic
2017-12-04 14:54:39 -08:00
Leonardo de Moura
53c9737c70
feat(library/init): new repeat tactic
2017-12-04 12:55:53 -08:00
