#\DeclareLyXModule{Standard Theorems (Numbered by Chapter)} #\DeclareCategory{Maths} #DescriptionBegin #Numbers theorems and the like by chapter (i.e., the counter is reset at #each chapter start). Use this module only with document classes that provide a chapter #environment. #DescriptionEnd #Requires: theorems-std | theorems-ams #Excludes: theorems-sec # Author: Richard Kimberly Heck Format 101 Counter theorem GuiName Theorem Within chapter LaTeXName thm End Style Theorem Preamble \theoremstyle{plain} \ifx\thechapter\undefined \newtheorem{thm}{\protect\theoremname} \else \newtheorem{thm}{\protect\theoremname}[chapter] \fi EndPreamble End