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author | msozeau <msozeau@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2008-03-28 20:40:35 +0000 |
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committer | msozeau <msozeau@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2008-03-28 20:40:35 +0000 |
commit | 22cc653ceff98ea69d0975ee0ccdcecc4ba96058 (patch) | |
tree | fb2b12a19945d2153d7db8aa715833015cc25ec2 /test-suite/success/LetPat.v | |
parent | 6bd55e5c17463d3868becba4064dba46c95c4028 (diff) |
Improve error handling and messages for typeclasses.
Add definitions of relational algebra in Classes/RelationClasses
including equivalence, inclusion, conjunction and disjunction. Add
PartialOrder class and show that we have a partial order on relations.
Change SubRelation to subrelation for consistency with the standard
library. The caracterization of PartialOrder is a bit original: we
require an equivalence and a preorder so that the equivalence relation
is equivalent to the conjunction of the order relation and its
inverse. We can derive antisymmetry and appropriate morphism instances
from this. Also add a fully general heterogeneous definition of
respectful from which we can build the non-dependent respectful
combinator.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10728 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'test-suite/success/LetPat.v')
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