name ntheorem category Package shortdesc Enhanced theorem environment. longdesc Enhancements for theorem-like environments: easier control of longdesc layout; proper placement of endmarks even when the environment longdesc ends with \end{enumerate} or \end{displaymath} (including support longdesc for amsmath displayed-equation environments); and support for longdesc making a list of theorems like \listoffigures. [description copied longdesc from TeX Catalogue]