diff -r f0aeca99b5d9 -r 461ee3e49ad3 src/HOL/Algebra/IntRing.thy
--- a/src/HOL/Algebra/IntRing.thy	Thu Mar 26 19:24:21 2009 +0100
+++ b/src/HOL/Algebra/IntRing.thy	Thu Mar 26 20:08:55 2009 +0100
@@ -96,7 +96,7 @@
   interpretation needs to be done as early as possible --- that is,
   with as few assumptions as possible. *}
 
-interpretation int!: monoid \<Z>
+interpretation int: monoid \<Z>
   where "carrier \<Z> = UNIV"
     and "mult \<Z> x y = x * y"
     and "one \<Z> = 1"
@@ -104,7 +104,7 @@
 proof -
   -- "Specification"
   show "monoid \<Z>" proof qed (auto simp: int_ring_def)
-  then interpret int!: monoid \<Z> .
+  then interpret int: monoid \<Z> .
 
   -- "Carrier"
   show "carrier \<Z> = UNIV" by (simp add: int_ring_def)
@@ -116,12 +116,12 @@
   show "pow \<Z> x n = x^n" by (induct n) (simp, simp add: int_ring_def)+
 qed
 
-interpretation int!: comm_monoid \<Z>
+interpretation int: comm_monoid \<Z>
   where "finprod \<Z> f A = (if finite A then setprod f A else undefined)"
 proof -
   -- "Specification"
   show "comm_monoid \<Z>" proof qed (auto simp: int_ring_def)
-  then interpret int!: comm_monoid \<Z> .
+  then interpret int: comm_monoid \<Z> .
 
   -- "Operations"
   { fix x y have "mult \<Z> x y = x * y" by (simp add: int_ring_def) }
@@ -139,14 +139,14 @@
   qed
 qed
 
-interpretation int!: abelian_monoid \<Z>
+interpretation int: abelian_monoid \<Z>
   where "zero \<Z> = 0"
     and "add \<Z> x y = x + y"
     and "finsum \<Z> f A = (if finite A then setsum f A else undefined)"
 proof -
   -- "Specification"
   show "abelian_monoid \<Z>" proof qed (auto simp: int_ring_def)
-  then interpret int!: abelian_monoid \<Z> .
+  then interpret int: abelian_monoid \<Z> .
 
   -- "Operations"
   { fix x y show "add \<Z> x y = x + y" by (simp add: int_ring_def) }
@@ -164,7 +164,7 @@
   qed
 qed
 
-interpretation int!: abelian_group \<Z>
+interpretation int: abelian_group \<Z>
   where "a_inv \<Z> x = - x"
     and "a_minus \<Z> x y = x - y"
 proof -
@@ -174,7 +174,7 @@
     show "!!x. x \<in> carrier \<Z> ==> EX y : carrier \<Z>. y \<oplus>\<^bsub>\<Z>\<^esub> x = \<zero>\<^bsub>\<Z>\<^esub>"
       by (simp add: int_ring_def) arith
   qed (auto simp: int_ring_def)
-  then interpret int!: abelian_group \<Z> .
+  then interpret int: abelian_group \<Z> .
 
   -- "Operations"
   { fix x y have "add \<Z> x y = x + y" by (simp add: int_ring_def) }
@@ -187,7 +187,7 @@
   show "a_minus \<Z> x y = x - y" by (simp add: int.minus_eq add a_inv)
 qed
 
-interpretation int!: "domain" \<Z>
+interpretation int: "domain" \<Z>
   proof qed (auto simp: int_ring_def left_distrib right_distrib)
 
 
@@ -203,7 +203,7 @@
   "(True ==> PROP R) == PROP R"
   by simp_all
 
-interpretation int! (* FIXME [unfolded UNIV] *) :
+interpretation int (* FIXME [unfolded UNIV] *) :
   partial_order "(| carrier = UNIV::int set, eq = op =, le = op \<le> |)"
   where "carrier (| carrier = UNIV::int set, eq = op =, le = op \<le> |) = UNIV"
     and "le (| carrier = UNIV::int set, eq = op =, le = op \<le> |) x y = (x \<le> y)"
@@ -219,7 +219,7 @@
     by (simp add: lless_def) auto
 qed
 
-interpretation int! (* FIXME [unfolded UNIV] *) :
+interpretation int (* FIXME [unfolded UNIV] *) :
   lattice "(| carrier = UNIV::int set, eq = op =, le = op \<le> |)"
   where "join (| carrier = UNIV::int set, eq = op =, le = op \<le> |) x y = max x y"
     and "meet (| carrier = UNIV::int set, eq = op =, le = op \<le> |) x y = min x y"
@@ -232,7 +232,7 @@
     apply (simp add: greatest_def Lower_def)
     apply arith
     done
-  then interpret int!: lattice "?Z" .
+  then interpret int: lattice "?Z" .
   show "join ?Z x y = max x y"
     apply (rule int.joinI)
     apply (simp_all add: least_def Upper_def)
@@ -245,7 +245,7 @@
     done
 qed
 
-interpretation int! (* [unfolded UNIV] *) :
+interpretation int (* [unfolded UNIV] *) :
   total_order "(| carrier = UNIV::int set, eq = op =, le = op \<le> |)"
   proof qed clarsimp