--- a/NEWS Mon Apr 20 09:32:40 2009 +0200
+++ b/NEWS Mon Apr 20 09:52:16 2009 +0200
@@ -9,14 +9,18 @@
*** HOL ***
-* Class semiring_div now requires no_zero_divisors and proof of div_mult_mult1;
+* Class semiring_div requires superclass no_zero_divisors and proof of div_mult_mult1;
theorems div_mult_mult1, div_mult_mult2, div_mult_mult1_if, div_mult_mult1 and
div_mult_mult2 have been generalized to class semiring_div, subsuming former
theorems zdiv_zmult_zmult1, zdiv_zmult_zmult1_if, zdiv_zmult_zmult1 and zdiv_zmult_zmult2.
div_mult_mult1 is now [simp] by default. INCOMPATIBILITY.
-* Power operation on relations and functions is now a dedicated overloaded constant
-funpower with infix syntax "^^". INCOMPATIBILITY.
+* Power operations on relations and functions are now dedicated constants:
+
+ relpow with infix syntax "^^"
+ funpow with infix syntax "^o"
+
+INCOMPATIBILITY.
New in Isabelle2009 (April 2009)
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