added comment about partial equivalence relations
authorChristian Urban <urbanc@in.tum.de>
Thu, 24 Jun 2010 00:41:41 +0100
changeset 2334 0d10196364aa
parent 2333 a0fecce8b244
child 2335 558c823f96aa
added comment about partial equivalence relations
Quotient-Paper/Paper.thy
--- a/Quotient-Paper/Paper.thy	Thu Jun 24 00:27:37 2010 +0100
+++ b/Quotient-Paper/Paper.thy	Thu Jun 24 00:41:41 2010 +0100
@@ -1134,6 +1134,9 @@
   compositions (needed for lifting theorems about @{text flat}). Also, a
   number of his definitions, like @{text ABS}, @{text REP} and @{text INJ} etc
   only exist in \cite{Homeier05} as ML-code, not included in the paper.
+  Like Homeier's, our quotient package can deal with partial equivalence
+  relations, but for lack of space we do not describe the mechanisms
+  needed for this kind of quotient constructions.
 
 
   One feature of our quotient package is that when lifting theorems, the user