--- a/src/HOL/Tools/Quotient/quotient_def.ML Mon Dec 12 23:06:41 2011 +0100
+++ b/src/HOL/Tools/Quotient/quotient_def.ML Tue Dec 13 14:04:20 2011 +0100
@@ -65,7 +65,7 @@
| _ => raise Match)
val absrep_trm = Quotient_Term.absrep_fun lthy Quotient_Term.AbsF (fastype_of rhs, lhs_ty) $ rhs
- val prop = Logic.mk_equals (lhs, Syntax.check_term lthy absrep_trm)
+ val prop = Syntax.check_term lthy (Logic.mk_equals (lhs, absrep_trm))
val (_, prop') = Local_Defs.cert_def lthy prop
val (_, newrhs) = Local_Defs.abs_def prop'