author | wenzelm |
Sun, 14 Apr 2019 17:37:05 +0200 | |
changeset 70165 | 48e8bbeef7d3 |
parent 70164 | 1f163f772da3 |
child 70166 | 538919322852 |
--- a/src/HOL/ex/PresburgerEx.thy Sun Apr 14 13:32:26 2019 +0100 +++ b/src/HOL/ex/PresburgerEx.thy Sun Apr 14 17:37:05 2019 +0200 @@ -88,7 +88,6 @@ theorem "~ (\<forall>j (i::int). j \<le> i --> (\<exists>x y. 0 \<le> x & 0 \<le> y & 3 * x + 5 * y = i))" by presburger -text\<open>Slow: about 5 seconds on a 1.6GHz machine.\<close> theorem "(\<exists>m::nat. n = 2 * m) --> (n + 1) div 2 = n div 2" by presburger