Typeset lcm operator in mathrm.

Author: beastaugh

open-logic-config.sty

@@ -1224,7 +1224,7 @@
 \newcommand\funfromto[2]{{}^{#1}{#2}}
 \newcommand\setrank[1]{\mathrm{rank}(#1)}
 \DeclareMathOperator*{\supstrict}{\mathrm{lsub}}
-\DeclareMathOperator\lcm{lcm}
+\DeclareMathOperator\lcm{\mathrm{lcm}}
 \newcommand\trcl[1]{\mathrm{trcl}(#1)}
 \newcommand\ZF{\Th{ZF}}
 \newcommand\SP{\Th{SP}}