presentation.sty: An Infrastructure for Presenting Semantic Macros This package supplies an infrastructure that allows to specify the presentation of semantic macros, including preference-based bracket elision. This allows to markup the functional structure of mathematical formulae without having to lose high-quality human-oriented presentation in {\LaTeX}. Moreover, the notation definitions can be used by MKM systems for added-value services, either directly from the {\sTeX} sources, or after translation. Copyright (c) 2008 Michael Kohlhase The package is distributed under the terms of the LaTeX Project Public License (LPPL) See http://trac.kwarc.info/sTeX for the project homepage, the development version of this package can be found at https://svn.kwarc.info/repos/stex/trunk/sty/stex/presentation