added sentence for when nf does not exist
authorLuc Moreau <l.moreau@ecs.soton.ac.uk>
Mon, 23 Jul 2012 10:42:03 +0100
changeset 4219 8729d8cd4157
parent 4218 2d4777e2b3ed
child 4220 34993bea2bef
added sentence for when nf does not exist
model/prov-constraints.html
--- a/model/prov-constraints.html	Mon Jul 23 10:35:14 2012 +0100
+++ b/model/prov-constraints.html	Mon Jul 23 10:42:03 2012 +0100
@@ -3165,6 +3165,7 @@
   </li>
   </ol>
 
+<p>A normal form of a PROV instance may not exist when a uniqueness constraint fails due to merging failure. </p>
 
 
   <p>Two PROV instances are <dfn>equivalent</dfn> if they have the