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Leonardo de Moura 54f2c0f254 feat(library/blast/forward): inst_simp should use the left-hand-side as a pattern (if none is provided by the user) 
The motivation is to reduce the number of instances generated by ematching.

For example, given

   inv_inv:  forall a, (a⁻¹)⁻¹ = a

the new heuristic uses ((a⁻¹)⁻¹) as the pattern.
This matches the intuition that inv_inv should be used a simplification
rule.

The default pattern inference procedure would use (a⁻¹). This is bad
because it generates an infinite chain of instances whenever there is a
term (a⁻¹) in the proof state.
By using (a⁻¹), we get
   (a⁻¹)⁻¹ = a
Now that we have (a⁻¹)⁻¹, we can match again and generate
   ((a⁻¹)⁻¹)⁻¹ = a⁻¹
and so on
2015-12-31 20:20:39 -08:00
..
examples fix(library/init/function): fix typo 2015-12-22 16:39:13 -05:00
finset refactor(library/data/finset/basic,library/*): get rid of finset singleton 2015-12-31 15:16:57 -08:00
fintype refactor(library): remove algebra namespace 2015-12-05 23:50:01 -08:00
int refactor(library): cleanup nat/int proofs 2015-12-29 12:39:53 -08:00
list feat(library/blast/forward): inst_simp should use the left-hand-side as a pattern (if none is provided by the user) 2015-12-31 20:20:39 -08:00
nat feat(library/blast/forward): inst_simp should use the left-hand-side as a pattern (if none is provided by the user) 2015-12-31 20:20:39 -08:00
rat refactor(library): remove algebra namespace 2015-12-05 23:50:01 -08:00
real refactor(*): normalize metaclass names 2015-12-28 10:39:15 -08:00
set feat(library/data/set/*,library/algebra/group_bigops): better finiteness lemmas, reindexing for big operations 2015-12-31 15:16:57 -08:00
bag.lean refactor(*): normalize metaclass names 2015-12-28 10:39:15 -08:00
bool.lean refactor(library): rename strategy "msimp" ==> "inst_simp" 2015-12-31 12:45:48 -08:00
bv.lean refactor(library): remove algebra namespace 2015-12-05 23:50:01 -08:00
complex.lean refactor(library): remove algebra namespace 2015-12-05 23:50:01 -08:00
countable.lean refactor(library/algebra/function): move function.lean to init folder 2015-07-06 07:29:56 -07:00
data.md refactor(library): move basic simp/congr rules to init folder, delete some legacy files 2015-11-20 16:38:10 -08:00
default.lean refactor(library): move basic simp/congr rules to init folder, delete some legacy files 2015-11-20 16:38:10 -08:00
empty.lean feaf(library): make sure basic standard library can be compiled with option "--to_axiom" 2015-07-29 16:11:23 -07:00
encodable.lean refactor(library): remove algebra namespace 2015-12-05 23:50:01 -08:00
equiv.lean refactor(library/*): use type classes for div and mod 2015-11-08 14:04:59 -08:00
fin.lean refactor(library): remove algebra namespace 2015-12-05 23:50:01 -08:00
hf.lean refactor(*): normalize metaclass names 2015-12-28 10:39:15 -08:00
hlist.lean feat(frontends/lean): allow anonymous 'have'-expressions in tactic mode 2015-07-23 18:52:59 -07:00
matrix.lean refactor(library): remove algebra namespace 2015-12-05 23:50:01 -08:00
num.lean feat(library): add some spacing hints 2015-09-30 17:36:32 -07:00
option.lean refactor(library): simplify theorems using improved tactics 2015-05-25 10:43:28 -07:00
pnat.lean refactor(library): remove algebra namespace 2015-12-05 23:50:01 -08:00
prod.lean refactor(library): use new 'suppose'-expression 2015-07-19 21:15:20 -07:00
sigma.lean refactor(library): use type classes for encoding all arithmetic operations 2015-11-08 14:04:54 -08:00
squash.lean refactor(library/*): remove 'Module:' lines 2015-05-23 20:52:23 +10:00
stream.lean fix(library/init/function): fix typo 2015-12-22 16:39:13 -05:00
string.lean refactor(library): simplify theorems using improved tactics 2015-05-25 10:43:28 -07:00
sum.lean feat(library): add some spacing hints 2015-09-30 17:36:32 -07:00
tuple.lean refactor(library): remove algebra namespace 2015-12-05 23:50:01 -08:00
unit.lean refactor(library/*): do various renamings 2015-05-25 16:50:42 -07:00
uprod.lean refactor(library/algebra/function): move function.lean to init folder 2015-07-06 07:29:56 -07:00