--- a/src/HOL/Fields.thy Sat Jun 22 07:18:55 2019 +0000
+++ b/src/HOL/Fields.thy Sat Jun 22 16:23:25 2019 +0200
@@ -81,8 +81,8 @@
simproc_setup fast_arith_nat ("(m::nat) < n" | "(m::nat) \<le> n" | "(m::nat) = n") =
\<open>K Lin_Arith.simproc\<close> \<comment> \<open>Because of this simproc, the arithmetic solver is
really only useful to detect inconsistencies among the premises for subgoals which are
- *not* themselves (in)equalities, because the latter activate
- fast_nat_arith_simproc anyway. However, it seems cheaper to activate the
+ \<^emph>\<open>not\<close> themselves (in)equalities, because the latter activate
+ \<^text>\<open>fast_nat_arith_simproc\<close> anyway. However, it seems cheaper to activate the
solver all the time rather than add the additional check.\<close>
lemmas [arith_split] = nat_diff_split split_min split_max