Leonardo de Moura
0405a67a70
feat(library/init): add wf_term_hack (unsound) axiom
...
We use the axiom instead of `sorry` to avoid a tsunami of warnings.
2018-04-30 11:06:51 -07:00
Leonardo de Moura
5787f17138
chore(library/init): merge sigma/lex.lean with wf.lean
2018-04-30 10:04:03 -07:00
Leonardo de Moura
2503d6026e
chore(library/init): remove prod micro module
2018-04-30 09:25:25 -07:00
Sebastian Ullrich
a7688a10b8
feat(frontends/lean/definition_cmds): elaborate a def's type separately when explicit return type is given
2018-04-20 09:59:09 -07:00
Leonardo de Moura
6d96741010
feat(library): provide names for constructor arguments
...
Motivation: `cases` and `induction` tactics use these names when the
user does not provide them.
2017-12-04 16:25:16 -08:00
Sebastian Ullrich
f024ccd75d
refactor(frontends/lean/token_table,library): take ~> assume
2017-07-05 11:20:10 -07:00
Leonardo de Moura
290e7b9cff
feat(library/init): use Sort instead of Type for defining acc and well_founded
2017-05-23 16:40:45 -07:00
Leonardo de Moura
499fc355df
feat(library/init): add has_well_founded type class
2017-05-17 14:34:52 -07:00
Leonardo de Moura
5cef84709f
refactor(library): avoid auxiliary definitions such as add/mul/le/etc
...
See Section "Other goodies" at
https://github.com/leanprover/lean/wiki/Refactoring-structures
This commit also improves the support for projections in the
unifier/matcher.
Now, we consider the extra case-split for projections.
Given a projection `proj`, and the constraint `proj s =?= proj t`, we need to try first `s =?= t` and if it fails, then try to reduce.
This is needed in the standard library because we now have constraints such as:
```
@has_le.le ?A ?s ?a ?b =?= @has_le.le nat nat.has_add x y
```
If we reduce the right hand side, we get the unsolvable constraint
```
@has_le.le ?A ?s ?a ?b =?= nat.le x y
```
Before this change, the constraint was `@le ?A ?s ?a ?b =?= @le nat nat.has_add x y`, and we already perform a case-split in this case.
Moreover, projections were eagerly reduced whenever possible.
The extra case-split generates a performance problem in several tests. For example `fib 8 = 34` was timing out.
I worked around this issue by performing the case-split only when the constraint contains meta-variables.
There are also minor issues. Example. `<` is notation for `has_lt.lt`, but `>` is for `gt`.
2017-05-01 08:52:19 -07:00
Leonardo de Moura
71685e4dd6
feat(frontends/lean): add support for t.<id> and t.<idx> when t is a composite term
...
Replace `^.` with `.` in the stdlib
2017-03-28 17:47:49 -07:00
Leonardo de Moura
8e2dcb8ad8
chore(frontends/lean): remove ^. variants (~> and ↣)
...
This modification was motivated by a discussion at slack.
2017-03-28 12:23:33 -07:00
Leonardo de Moura
36770119b6
feat(library): do not generate C.destruct (for structures), and C.induction_on (for structures and inductive datatypes)
2017-03-15 14:45:13 -07:00
Leonardo de Moura
a00f2e49a7
chore(frontends/lean): remove several command aliases
...
We still have many more to remove and rename.
See issue #1432
2017-03-09 16:49:03 -08:00
Leonardo de Moura
0768bb28f4
chore(library/init/wf): rename parameter
2017-03-03 16:56:40 -08:00
Leonardo de Moura
17556758cb
feat(library/constructions,library/inductive_compiler): automatically generate dependent eliminator for inductive predicates
...
The dependent eliminator for an inductive predicate C is called C.drec
TODO: construct dcases_on and drec_on using C.drec
We need this recursor for implementing dependent elimination for
inductive predicates.
We don't need to define acc.drec and eq.drec in the standard library anymore.
2017-02-28 20:58:04 -08:00
Leonardo de Moura
32e6442d0a
feat(frontends/lean): no global universes in the frontend
2017-02-08 17:23:04 -08:00
Leonardo de Moura
4a2ffefdaf
fix(library/init/wf): wf eliminators should be able to eliminate into Prop and Type
2017-01-30 19:14:43 -08:00
Leonardo de Moura
77a9feaf70
refactor(frontends/lean): PType ==> Sort
...
see #1341
2017-01-30 11:54:00 -08:00
Leonardo de Moura
bf9f7560f7
feat(frontends/lean): (Type u) can't be a proposition
...
(Type u) is the old (Type (u+1))
(PType u) is the old (Type u)
Type* is the old (Type (_+1))
PType* is the old Type*
The stdlib can be compiled, but we still have > 70 broken tests
See discussion at #1341
2017-01-30 11:54:00 -08:00
François G. Dorais
b305130ec3
fix(library/init/wf): typo
...
Same typo as #1091 , different location.
2017-01-13 11:35:52 -08:00
Leonardo de Moura
e423588463
refactor(library/init): merge some files
2016-12-02 16:13:45 -08:00
Leonardo de Moura
e11fd8820a
refactor(library/init): create init.data folder
2016-12-02 14:23:06 -08:00
Leonardo de Moura
0d2d595c31
chore(library/init): remove unnecessary space
2016-11-23 10:53:19 -08:00
Leonardo de Moura
c816b80855
chore(*): don't use upper case letter for type variables, and camelCase for declarations
2016-11-17 14:54:08 -08:00
Leonardo de Moura
e304d778a1
chore(library/init): cleanup
2016-09-24 16:38:39 -07:00
Leonardo de Moura
0641f3f714
chore(library/init): cleanup proofs using new elaborator
2016-09-23 17:36:32 -07:00
Leonardo de Moura
5e5285ee67
refactor(library): rename pr1/pr2 ==> fst/snd
2016-09-21 09:48:39 -07:00
Leonardo de Moura
b716827206
chore(library/init): uniform style
2016-09-21 09:21:37 -07:00
Leonardo de Moura
4c15c9833d
fix(frontends/lean/elaborator): use_elim_elab_core
2016-09-17 20:04:14 -07:00
Leonardo de Moura
75d5087d43
fix(library/type_context): using incorrect local_context at revert
2016-09-17 19:44:38 -07:00
Leonardo de Moura
5e8f2add84
refactor(library/init): use universe variables
2016-09-17 12:25:02 -07:00
Daniel Selsam
a9b01991c2
feat(frontends/lean/inductive_cmd): new frontend for the inductive cmd
...
Conflicts:
src/frontends/lean/CMakeLists.txt
src/frontends/lean/structure_cmd.h
2016-08-17 07:34:03 -07:00
Sebastian Ullrich
fd2c42a8bf
chore(library, tests): switch to new attribute declaration syntax
...
sed -Ei 's/^(\s*)((private |protected )?(noncomputable )?(abbreviation|definition|meta_definition|theorem|lemma|proposition|corollary)\s+\S+\s*)((\s*\[(\S+(\s+[0-9]+)*|priority.*)\])+)\s*/\1attribute \6\n\1\2/' library/**/*.lean tests/**/*.lean
sed -Ei 's/\s+$//' library/**/*.lean # remove trailing whitespace
2016-08-12 15:36:12 -07:00
Leonardo de Moura
8c36cd04a3
feat(library/init/sigma_lex): add skip_left relation for sigma
2016-08-09 11:17:12 -07:00
Leonardo de Moura
9ac7ee1624
refactor(library/init): well_founded is not a type class anymore
2016-08-08 14:28:45 -07:00
Leonardo de Moura
de237fa6e4
chore(library/coercion): disable coercion attribute
2016-07-29 13:15:10 -07:00
Leonardo de Moura
7ddf1e817b
chore(frontends/lean): coercions are disabled by default
2016-07-29 13:03:23 -07:00
Leonardo de Moura
97719a4c5f
refactor(frontends/lean): disable '!' operator, and adjust standard library
2016-07-02 01:41:46 +01:00
Leonardo de Moura
c23f4dcce3
chore(library/init): minimize number of sorry's in the init folder
...
Motivation: the new tactic framework has more dependencies, and cannot
be used until all dependencies have been defined
2016-06-06 18:56:45 -07:00
Leonardo de Moura
31e066633c
chore(library): fix dependencies
2016-06-06 16:43:43 -07:00
Leonardo de Moura
e06713b3cd
chore(library/init/wf): make sure we can generate code for acc.drec
2016-05-23 17:02:51 -07:00
Leonardo de Moura
de64750621
chore(frontends/lean): disable expressions that use tactic framework
2016-04-25 15:07:26 -07:00
Floris van Doorn
e14d4a4c0c
feat(init/wf): port from standard library to HoTT library
...
After this commit we need some more advanced theorems in init/wf, notably function extenstionality.
For this reason I had to refactor the init folder a little bit.
To keep the init folders in both libraries similar, I did the same refactorization in the standard library, even though that was not required for the standard library
2016-02-09 10:03:48 -08:00
Leonardo de Moura
a618bd7d6c
refactor(library): use type classes for encoding all arithmetic operations
...
Before this commit we were using overloading for concrete structures and
type classes for abstract ones.
This is the first of series of commits that implement this modification
2015-11-08 14:04:54 -08:00
Leonardo de Moura
17f2c240e1
refactor(library/init/wf): cleanup wf proofs using tactics
...
add dependent elimination for acc.
2015-06-06 16:58:24 -07:00
Jeremy Avigad
8bebd104ff
refactor(library/*): remove 'Module:' lines
2015-05-23 20:52:23 +10:00
Leonardo de Moura
670eac9d50
refactor(library): avoid 'context' command in the standard library
2015-04-21 19:13:19 -07:00
Jeremy Avigad
2b56a2b891
feat(library/init): create markdown directory file
2014-12-15 16:43:42 -05:00
Leonardo de Moura
697d4359e3
refactor(library): add 'init' folder
2014-11-30 20:34:12 -08:00
