rename class dom to ring_1_no_zero_divisors (cf. HOL/Ring_and_Field.thy 1.84 by huffman);
--- a/src/HOL/Hyperreal/StarClasses.thy Tue Jul 03 18:42:09 2007 +0200
+++ b/src/HOL/Hyperreal/StarClasses.thy Tue Jul 03 20:26:08 2007 +0200
@@ -365,7 +365,7 @@
instance star :: (ring_1) ring_1 ..
instance star :: (comm_ring_1) comm_ring_1 ..
instance star :: (ring_no_zero_divisors) ring_no_zero_divisors ..
-instance star :: (dom) dom ..
+instance star :: (ring_1_no_zero_divisors) ring_1_no_zero_divisors ..
instance star :: (idom) idom ..
instance star :: (division_ring) division_ring