[PS] fixes

semester6/iml/util/helpers.tex

@@ -61,11 +61,11 @@
 \def \F{\mathcal{F}}
 
 % Titles
-\def \definition{\colorbox{lightgray}{Def} }
+\def \definition{\colorbox{lightgray}{D.} }
 \def \notation{\colorbox{lightgray}{Notation} }
-\def \remark{\colorbox{lightgray}{Remark} }
+\def \remark{\colorbox{lightgray}{Rmk.} }
 \def \theorem{\colorbox{lightgray}{Th.} }
-\def \lemma{\colorbox{lightgray}{Lem.} }
+\def \lemma{\colorbox{lightgray}{L.} }
 \def \method{\colorbox{lightgray}{Method} }