Leonardo de Moura
12bad8794b
feat(frontends/lean/pp): use 'assert' instead of 'have ... [visible]'
2015-05-08 10:02:15 -07:00
Leonardo de Moura
0b57f7d00a
refactor(library/tactic): refine interface between tactic and proof-term modes
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Some constraints were being lost with the previous interface.
This is why we had a workaround in fintype.lean.
We can also remove some hacks we have used in the past.
2015-05-07 18:02:51 -07:00
Leonardo de Moura
12b818b7d3
fix(library/util): "empty" is not universe polymorphic anymore
2015-05-07 16:43:58 -07:00
Leonardo de Moura
eb3a236119
fix(library/unifier): typo
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fixes #588
2015-05-07 16:30:02 -07:00
Leonardo de Moura
88cd6e9a63
chore(library/unifier): remove dead code
2015-05-07 15:49:33 -07:00
Leonardo de Moura
aff9257c72
feat(frontends/lean): allow → to be used in calc proofs
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see issue #586
2015-05-07 12:28:47 -07:00
Leonardo de Moura
b03266be70
feat(library/normalize,frontends/lean): rename '[unfold-m]' hint to '[constructor]', and allow it to be attached to constants
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closes #587
2015-05-07 12:00:34 -07:00
Leonardo de Moura
ac24f19210
fix(library/tactic/rewrite_tactic): use relaxed type checker when processing rewrite "proof step"
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That is, the restricted type checker should only be used in the
matching/unification step.
fixes #583
2015-05-07 09:57:23 -07:00
Leonardo de Moura
e0b7017435
feat(frontends/lean): make sure the proof state bit "report errors" is
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set in the beginning of each begin-end element
see discussion at #583
2015-05-07 09:43:39 -07:00
Leonardo de Moura
e841852be4
feat(library/max_sharing): maximize sharing in universe level expressions
2015-05-06 14:26:12 -07:00
Leonardo de Moura
210cae7d6c
fix(library/tactic): we must unfold untrusted macros when type checking intermediate results
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Example: before this commit, the file librata/data/list/perm.lean would
not type check if the option -t 0 (trust level zero) was provided.
Reason: the intermediate term contained a macro, and macros are not
allowed at trust level zero.
2015-05-06 14:23:58 -07:00
Leonardo de Moura
b5619c2109
fix(library/export): remove workaround from 'export' procedure
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The workaround was needed due to a bug in the max_sharing procedure
2015-05-06 14:00:57 -07:00
Leonardo de Moura
2ca16a099b
fix(library/max_sharing): conflict with the kernel approximate caching
2015-05-06 13:57:36 -07:00
Leonardo de Moura
84deddcca9
feat(library/tactic/rewrite_tactic): apply 'reflexivity' tactic after 'rewrite' instead of hard coded solution
2015-05-05 20:23:49 -07:00
Leonardo de Moura
c7a20644c0
fix(library/tactic/rewrite_tactic): bug in rewrite tactic (HoTT mode)
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closes #580
2015-05-05 19:25:15 -07:00
Leonardo de Moura
a4efefb6ff
feat(library/tactic/rewrite_tactic): display type error message when
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rewrite tactic fails
2015-05-05 19:23:41 -07:00
Leonardo de Moura
616f49c2e4
feat(frontends/lean): improved 'obtains' expression
2015-05-05 18:30:16 -07:00
Leonardo de Moura
c0c0490db3
feat(library/export): simplify format
2015-05-04 18:22:12 -07:00
Leonardo de Moura
701b0ae66f
feat(library): export environment in textual format
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closes #577
2015-05-04 18:05:00 -07:00
Leonardo de Moura
6571c47353
feat(library/normalize): add '[unfold-m]' hint
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See issue #496
2015-05-04 14:23:04 -07:00
Leonardo de Moura
3c8c75470f
fix(library/tactic/exact_tactic): do not report unassigned metavariables in the 'refine' tactic
2015-05-03 21:08:09 -07:00
Leonardo de Moura
326048df54
feat(library/tactic/inversion_tactic): clear variables that have been eliminated by cases tactic
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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
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fixes #571
2015-05-02 17:48:08 -07:00
Leonardo de Moura
e379034b95
feat(library/tactic): improve 'assumption' tactic
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- It uses the unifier in "conservative" mode
- It only affects the current goal
closes #570
2015-05-02 17:33:54 -07:00
Leonardo de Moura
b39fe17dee
feat(library/tactic): add 'transitiviy', 'reflexivity' and 'symmetry' tactics
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closes #500
2015-05-02 15:48:25 -07:00
Leonardo de Moura
cd17618f4a
refactor(library): replace 'calc_trans', 'calc_symm', 'calc_refl' and 'calc_subst' commands with attributes '[symm]', '[refl]', '[trans]' and '[subst]'
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These attributes are used by the calc command.
They will also be used by tactics such as 'reflexivity', 'symmetry' and
'transitivity'.
See issue #500
2015-05-02 15:15:35 -07:00
Leonardo de Moura
415ca2b93f
feat(library/tactic): add 'congruence' tactic
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It is the f_equal described at issue #500 .
2015-05-02 12:58:46 -07:00
Leonardo de Moura
2054d67483
chore(library/tactic/rewrite_tactic): fix style
2015-05-01 19:49:48 -07:00
Leonardo de Moura
9dc0388022
fix(library/tactic/rewrite_tactic): bug when rewriting hypotheses
2015-05-01 19:45:23 -07:00
Leonardo de Moura
ac8ba6a3cf
feat(library/tactic): add 'subst' tactic
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see issue #500
2015-05-01 19:31:24 -07:00
Leonardo de Moura
b0759f3986
fix(library/tactic/rewrite_tactic): bug when rewriting multiple hypotheses
2015-05-01 19:03:43 -07:00
Leonardo de Moura
de369a0a0a
feat(library/tactic/injection_tactic): improve 'injection' tactic
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see issue #500
2015-05-01 15:49:56 -07:00
Leonardo de Moura
9ba8b284a1
fix(library/tactic/apply_tactic): add eapply, and fix issue #361
2015-05-01 15:08:00 -07:00
Leonardo de Moura
63eb155c7e
feat(library/tactic): add 'injection' tactic
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see issue #500
2015-05-01 12:45:21 -07:00
Leonardo de Moura
7e9f574ef3
fix(library/tactic/apply_tactic): use internally 'apply' instead of 'fapply' as the default "apply" tactic
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This changes improves the 'constructor' tactic
2015-04-30 21:58:35 -07:00
Leonardo de Moura
2d9c950144
feat(library/tactic/constructor_tactic): allow 'constructor' tactic without index
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see issue #500
2015-04-30 21:15:07 -07:00
Leonardo de Moura
15e52b06df
fix(library/tactic/constructor_tactic): bug in constructor tactic
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see example (constr_tac2.lean) in comment at issue #500
2015-04-30 20:18:24 -07:00
Leonardo de Moura
d18f9c7607
fix(library/tactic/constructor_tactic): use 1 (instead of 0) to reference the first constructor
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see comment at issue #500
2015-04-30 20:08:00 -07:00
Leonardo de Moura
0b995c4fe3
fix(library/tactic/rewrite_tactic): relax reducibility constraints in some parts of the rewrite tactic
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fixes #567
2015-04-30 18:22:58 -07:00
Leonardo de Moura
d152f38518
feat(library/tactic): add 'constructor', 'split', 'left', 'right' and 'existsi' tactics
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see issue #500
2015-04-30 17:52:29 -07:00
Leonardo de Moura
1c6067bac2
feat(library/tactic): add 'exfalso' tactic
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see issue #500
2015-04-30 15:43:07 -07:00
Leonardo de Moura
d546b019fb
fix(library/tactic/rewrite_tactic): assertion violation when checking
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dependencies at rewrite tactic
2015-04-30 15:41:57 -07:00
Leonardo de Moura
936e024128
fix(library/tactic/rewrite_tactic): bug in rewrite hypothesis in HoTT mode
2015-04-30 15:30:25 -07:00
Leonardo de Moura
9c8a63caec
feat(library/tactic): add 'contradiction' tactic
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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
3233008039
feat(library/tactic): allow user to name generalized term in the 'generalize' tactic
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closes #421
2015-04-30 11:57:40 -07:00
Leonardo de Moura
3912bc24c8
feat(frontends/lean): nicer syntax for 'intros' 'reverts' and 'clears'
2015-04-30 11:00:39 -07:00
Leonardo de Moura
dce7177382
feat(library/tactic/change_tactic): improve 'change' tactic
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- Better error messages
- Try to solve unification constraints produced during is_def_eq test
addresses comment on issue #531
2015-04-29 13:31:09 -07:00
Leonardo de Moura
d055947243
feat(library/tactic/rewrite_tactic): ignore implicit argument when matching at rewrite tactic
2015-04-29 12:51:33 -07:00
Leonardo de Moura
182a8a542e
feat(library/tactic/rewrite_tactic): store exception "what" message in rewrite trace
2015-04-29 12:46:41 -07:00
Leonardo de Moura
b790ca9806
fix(library/tactic/rewrite_tactic): type check rewriting steps
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closes #550
2015-04-29 12:16:37 -07:00
