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Author SHA1 Message Date
Leonardo de Moura
ffffabad95 feat(kernel/level): improve is_geq procedure for universe levels 
Now, it also returns true for

          (succ^k1 a)  =?=  k2

where k1 >= k2
 2014-11-14 14:20:35 -08:00
Leonardo de Moura
488f989c46 fix(frontends/lean/inductive_cmd): generate error for inductive datatype declarations that will produce an eliminator that can only eliminate to Prop 2014-11-14 13:57:42 -08:00
Leonardo de Moura
e7a7458922 feat(library/general_notation): reserve unary minus 2014-11-13 22:08:20 -08:00
Leonardo de Moura
58525905d0 fix(frontends/lean/notation_cmd): bugs in 'reserve notation' command 2014-11-13 22:05:55 -08:00
Jeremy Avigad
1ed7794264 feat(library/algebra/group): add theorems for calculation 2014-11-13 20:44:58 -08:00
Jakob von Raumer
e740fbe8c4 chore(library/hott) remove hott.axoims.ua from imports of funext_from_ua.lean 2014-11-13 20:43:46 -08:00
Jakob von Raumer
b514a978b2 fix(library/hott) changed pointed.lean to use trunc.lean correctly 2014-11-13 20:43:46 -08:00
Jakob von Raumer
8dfa78e070 feat(library/hott) almost completed portin UnivalenceImpliesFunext.v 2014-11-13 20:43:46 -08:00
Jakob von Raumer
df4a8db23d feat(library/hott) add to trunc.lean: contractible types are equivalent to unit 2014-11-13 20:43:46 -08:00
Jakob von Raumer
3ee703f5d5 feat(library/hott) Ported part of UnivalenceImpliesFunext.v 2014-11-13 20:43:46 -08:00
Jakob von Raumer
2ed7032997 chore(library/hott) cleaned up the proof a bit 2014-11-13 20:43:46 -08:00
Jakob von Raumer
b5d564431a feat(library/hott) port the rest of Funext_Varieties.v 2014-11-13 20:43:46 -08:00
Jakob von Raumer
6296f8e092 feat(library/hott) port a good portion of FunextVarieties.v 2014-11-13 20:43:46 -08:00
Jakob von Raumer
be8c758be1 feat(library/hott) ported Pointed.v 2014-11-13 20:43:45 -08:00
Leonardo de Moura
51719145f9 feat(library/unifier): solved universe constraints of the form succ^k1 a = max k2 ?m (when k1 >= k2) 2014-11-12 17:28:33 -08:00
Leonardo de Moura
edd04881ee fix(library/logic): import prod and unit declarations in logic 
Reason: we need them for automatically generating constructions needed
by the definitional package
 2014-11-12 16:54:50 -08:00
Leonardo de Moura
6bc89f0916 feat(library/definitional): define ibelow and below 
These are helper definitions for brec_on and binduction_on
 2014-11-12 16:38:46 -08:00
Leonardo de Moura
97609d1625 test(tests/lean/run/nateq): add example that triggered previous modification 2014-11-12 15:11:08 -08:00
Leonardo de Moura
b07b82cf43 fix(library/definitional): marking cases_on and rec_on as reducible 
The idea is to avoid counter-intuitive behavior
 2014-11-12 15:03:30 -08:00
Leonardo de Moura
858538a329 refactor(library/definitional): add new to_telescope procedure, and remove code duplication in no_confusion.cpp 2014-11-12 13:31:31 -08:00
Leonardo de Moura
a3066e3eaa fix(frontends/lean/inductive_cmd): bug in inductive datatype elaborator 2014-11-12 13:10:19 -08:00
Leonardo de Moura
b4c37d180b refactor(library/definitional): add some helper functions 2014-11-12 12:24:22 -08:00
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
5312afa7ec feat(frontends/lean/inductive_cmd): improve resulting universe level inference for inductive datatypes 
The new test contains examples that required explicit levels.
 2014-11-12 10:52:32 -08:00
Leonardo de Moura
ef5a3e83ad feat(library/data/vector): expand 'vector' module 2014-11-11 22:33:47 -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
e2bfe6ee36 refactor(library/definitional/no_confusion): cleanup API 2014-11-11 16:12:44 -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
902a551048 feat(definitional/brec_on): add 'mk_below' skeleton 2014-11-11 14:55:21 -08:00
Leonardo de Moura
5fbf9ee964 refactor(library/definitional/util): remove code duplication 2014-11-11 13:53:41 -08:00
Leonardo de Moura
1079d6b320 refactor(library/definitional): combine auxiliary functions used by definitional package in a single module 2014-11-11 13:46:36 -08:00
Leonardo de Moura
b4be96c980 feat(library/definitional/util): add is_inductive_predicate auxiliary predicate 2014-11-11 13:32:56 -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
4fd1ee7619 feat(library/definitional/util): add is_recursive_datatype auxiliary function 2014-11-11 12:26:26 -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
21b93bd2e5 chore(library/data/prod/wf): remove dependency on opaque theorem 2014-11-11 00:39:53 -08:00
Leonardo de Moura
54213b48dc feat(library/data/prod/wf): lex of well-founded relations is well-founded 2014-11-11 00:29:21 -08:00
Leonardo de Moura
76711d00c1 feat(library/data/nat/wf): define measure using inverse image 2014-11-11 00:28:46 -08:00
Leonardo de Moura
4623a62ec3 feat(library/data/nat/wf): predecessor relation is well-founded 2014-11-10 22:15:15 -08:00
Leonardo de Moura
9c93816211 chore(library/logic/wf): cleanup 2014-11-10 21:19:38 -08:00
Leonardo de Moura
e2ce942513 fix(tests/lean): adjust test to new eval semantics 2014-11-10 21:10:33 -08:00
Leonardo de Moura
4ebd3e2c27 feat(library/logic/wf): transitive closure of a well-founded relation is well-founded 2014-11-10 21:07:28 -08:00
Leonardo de Moura
22b7a0615f fix(frontends/lean): coercion affects other modules 2014-11-10 20:14:19 -08:00
Leonardo de Moura
64043094f4 feat(library/logic/wf): some basic definitions for constructing well_founded relations 2014-11-10 17:57:55 -08:00
Leonardo de Moura
189e5e6b48 refactor(library/data/nat/wf): mark theorem as transparent 
It doesn't really help since
        le_imp_lt_or_eq, succ_le_cancel, lt_imp_le_succ and or.elim
are still opaque
 2014-11-10 12:52:02 -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
50973bb4f3 feat(frontends/lean): default 'eval' command ignores opaque/irreducible annotations 
To retrieve the previous behavior, we should use [strict] modifier
 2014-11-10 12:46:04 -08:00
Leonardo de Moura
bd5f3ec572 feat(emacs/lean-syntax): highlight [decls] modifier 2014-11-10 10:35:42 -08:00
Leonardo de Moura
363d4a7577 fix(library/definitional/no_confusion): assertion violation 2014-11-10 10:32:03 -08:00
Leonardo de Moura
95554a527c feat(frontends/lean/placeholder_elaborator): display instance trace header once per class-instance resolution problem 2014-11-09 15:00:13 -08:00