author | wenzelm |
Sun, 03 Nov 2019 16:20:05 +0100 | |
changeset 71013 | bfa1017b4553 |
parent 71012 | 73f14e0b7151 |
child 71014 | 58022ee70b35 |
--- a/src/HOL/Lattices.thy Sun Nov 03 16:01:39 2019 +0100 +++ b/src/HOL/Lattices.thy Sun Nov 03 16:20:05 2019 +0100 @@ -161,7 +161,7 @@ subsection \<open>Concrete lattices\<close> -class semilattice_inf = order + inf + +class semilattice_inf = order + inf + assumes inf_le1 [simp]: "x \<sqinter> y \<le> x" and inf_le2 [simp]: "x \<sqinter> y \<le> y" and inf_greatest: "x \<le> y \<Longrightarrow> x \<le> z \<Longrightarrow> x \<le> y \<sqinter> z"