Leonardo de Moura
463e70332d
test(tests/lean/run): define brec_on and binduction_on for a reflexive type
...
We say an inductive type T is reflexive if it contains at least one constructor that
takes as an argument a function returning T.
For reflexive types it doesn't seen to be possible to define a single
brec_on that can eliminate to Type.{>=1} and Prop.
The universe level expressions get too complicated.
Even if we extend the universe constraint solver in the kernel, the
additional complexity might be a problem.
We workaround this issue by defining two versions of brec_on:
- One (brec_on) that eliminates to Type.{>=1}, and
- binduction_on that eliminates to Prop.
For non-reflexive types, we can combine both of them.
2014-11-12 10:52:32 -08:00
Leonardo de Moura
faf90c4b87
test(tests/lean/run): test brec_on on vectors
2014-11-11 17:23:59 -08:00
Leonardo de Moura
f6889951c6
fix(library/definitional/cases_on): bug in inductive datatypes with higher-order recursion
2014-11-11 15:14:08 -08:00
Leonardo de Moura
e65b5884e5
test(tests/lean/run/forest): define brec_on for forests
...
Almost everything explicit to get an idea of what needs to be generated automatically.
2014-11-11 13:16:23 -08:00
Leonardo de Moura
b3e4a689cf
test(tests/lean/run): define ackermann function using recursors
2014-11-11 11:06:10 -08:00
Leonardo de Moura
1f92751c4d
test(tests/lean/run): fibonacci using well_founded recursion
2014-11-10 12:46:55 -08:00
Leonardo de Moura
363d4a7577
fix(library/definitional/no_confusion): assertion violation
2014-11-10 10:32:03 -08:00
Leonardo de Moura
df5a17cdce
feat(frontends/lean/placeholder_elaborator): include type in class-instance resolution trace
2014-11-09 12:06:16 -08:00
Leonardo de Moura
9b9ae128d5
feat(frontends/lean): include file-name and line/col numbers when displaying class-instance resolution trace
2014-11-09 11:47:01 -08:00
Leonardo de Moura
aef1dd9a04
test(tests/lean/run): fibonacci using below_rec_on (aka brec_on)
2014-11-08 22:19:18 -08:00
Leonardo de Moura
1b6e40d3d6
test(tests/lean/run): define below_rec_on (aka brec_on) for vectors
2014-11-08 22:19:18 -08:00
Leonardo de Moura
e8bc0f8249
feat(library/defitional): add no_confusion construction for inductive datatypes that are not propositions
2014-11-08 18:56:52 -08:00
Leonardo de Moura
b5da143fc0
feat(library/defitional): add no_confusion_type construction for inductive datatypes that are not propositions
2014-11-08 15:20:19 -08:00
Leonardo de Moura
f16f215c2a
refactor(data/num/string): break into pieces to reduce dependencies
2014-11-07 08:53:14 -08:00
Leonardo de Moura
e993486301
refactor(library/data/num): break into pieces to reduce dependencies
2014-11-07 08:24:29 -08:00
Leonardo de Moura
b3ad8c704a
feat(frontends/lean/structure_cmd): allow inheritance from two identical structures, closes #296
2014-11-05 15:01:05 -08:00
Leonardo de Moura
4650791108
feat(frontends/lean): add 'print fields' command
2014-11-05 14:06:54 -08:00
Leonardo de Moura
354baf4d13
test(tests/lean/run): add structure command test
2014-11-05 12:54:03 -08:00
Leonardo de Moura
677e0aeef6
fix(frontends/lean/structure_cmd): accept ': Type' when universe levels are not specified
2014-11-05 12:02:52 -08:00
Leonardo de Moura
defc2478b5
feat(frontends/lean): add 'record' as an alias for 'structure' command
2014-11-05 12:02:52 -08:00
Leonardo de Moura
6944c7d902
fix(frontends/lean/placeholder_elaborator): local context must be adjusted when performing class-instance resolution modulo Pi-abstraction, fixes #293
2014-11-04 18:41:27 -08:00
Leonardo de Moura
d58c3e498d
feat(frontends/lean/builtin_cmds): add 'print prefix' command
2014-11-04 08:40:32 -08:00
Leonardo de Moura
b6722a5d33
feat(frontends/lean/structure_cmd): add 'private' modifier for parent structures
...
When it is used coercions/instances to parent structure are to registered
2014-11-03 23:16:49 -08:00
Leonardo de Moura
b24165dc7b
feat(frontends/lean/structure_cmd): remove 'cases_on' for structures since it may confuse users, add 'destruct' as alternative name for 'rec_on'
2014-11-03 23:06:33 -08:00
Leonardo de Moura
7897e21a14
feat(frontends/lean/structure_cmd): allow fields to be suppresed, but constructor to be provided
2014-11-03 22:55:51 -08:00
Leonardo de Moura
08b4ce2db9
feat(frontends/lean/structure_cmd): use 'mk' as constructor name when it is not provided
2014-11-03 22:40:08 -08:00
Leonardo de Moura
8f3139231b
feat(frontends/lean/structure_cmd): allow structure declarations that contains only a header
2014-11-03 22:17:43 -08:00
Leonardo de Moura
91749d2364
fix(frontends/lean/structure_cmd): modify coercion generation
...
The previous coercion was more efficient, but the computation was
getting stuck when processing algebraic structures
2014-11-03 19:37:11 -08:00
Leonardo de Moura
d2b5af237e
refactor(library): use new 'structure' command to define prod and sigma
2014-11-03 18:57:55 -08:00
Leonardo de Moura
ea7470375f
fix(tests/lean): to reflect changes in the standard library
2014-11-03 18:46:53 -08:00
Leonardo de Moura
c306bfa83c
feat(frontends/lean/structure_cmd): add 'eta' theorem for structures
2014-11-03 18:33:44 -08:00
Leonardo de Moura
186d910d0b
feat(frontends/lean/structure_cmd): mark coercion to parents as coercions and instances (when both structures as classes)
2014-11-03 17:55:59 -08:00
Leonardo de Moura
b112f3c582
feat(frontends/lean/structure_cmd): add coercions to parent structures
2014-11-03 17:39:52 -08:00
Leonardo de Moura
7afa69577e
feat(frontends/lean/structure_cmd): add aliases for structure decls
2014-11-03 15:50:41 -08:00
Leonardo de Moura
efe1105eb9
fix(frontends/lean): alias generation for composite names was not working
...
This is an issue for declarations that generate composite names such as
the inductive datatype packacke.
The commit also fix a bug in the generate of aliases for recursors
2014-11-03 15:43:58 -08:00
Leonardo de Moura
0f56b5f5b7
test(tests/lean/run): add structure command test
2014-11-03 14:29:17 -08:00
Leonardo de Moura
a2e75159c8
fix(frontends/lean): process choice-exprs at check_constant_next
2014-11-02 19:42:30 -08:00
Leonardo de Moura
df008dc3c3
feat(frontends/lean/inductive_cmd): create a namespace for each declared datatype
2014-11-01 19:15:46 -07:00
Leonardo de Moura
ea55ec4090
feat(frontends/lean/decl_cmds): remove useless name from 'example' commad
2014-11-01 16:12:23 -07:00
Leonardo de Moura
1e6f7cdbb4
chore(frontends/lean/decl_cmds): add 'example' command
...
It is like a theorem, but it is discarded after checking
2014-11-01 11:37:39 -07:00
Leonardo de Moura
94cf10284a
fix(frontends/lean/calc_proof_elaborator): bug when inserting symmetry proofs for heq, fixes #286
...
The problem was that heq type is
Pi {A : Type} (a : A) {B : Type} (b : B), Prop
The calc_proof_elaborator was assuming that (a : A) (b : B) were the
last two arguments in any relation supported by calc.
The fix is to remove this assumption.
2014-11-01 07:30:04 -07:00
Leonardo de Moura
2688ca38bf
feat(frontends/lean/inductive_cmd): notation for enumeration types
2014-10-31 19:01:32 -07:00
Leonardo de Moura
d7beabe91c
fix(frontends/lean/calc_proof_elaborator): improve calc proof assistant
2014-10-31 09:49:45 -07:00
Leonardo de Moura
17df85f592
feat(frontends/lean/calc_proof_elaborator): add '{...}' if needed in calc proof steps
...
This is part of #268
2014-10-31 00:55:19 -07:00
Leonardo de Moura
591e566472
feat(frontends/lean): try to inject symmetry (if needed) in calc proofs, add calc_symm command for configuring the symmetry theorem for a given operator
...
This is part of #268
2014-10-30 23:24:09 -07:00
Leonardo de Moura
c5a62f8abb
feat(frontends/lean): insert ! in calculational proofs when needed
...
This is part of #268
2014-10-30 22:22:04 -07:00
Leonardo de Moura
6107da05db
fix(frontends/lean): universe variable is treated as parameter inside section, fixes #283
2014-10-29 19:47:14 -07:00
Leonardo de Moura
9547e2d077
feat(library/tactic): add rotate_left/rotate_right tactics, closes #278
2014-10-29 19:13:55 -07:00
Leonardo de Moura
fe4ea48381
feat(library/definitional/projection): add projection generator, closes #257
2014-10-29 13:13:05 -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
