Old commands


\begin{decl}
\vert\samepage\vert
\end{decl}
The || command still exists but is no longer being maintained. This is because it only ever worked erratically; it does not guarantee that there will be no page-breaks within its scope; and it can cause footnotes and marginals to be wrongly placed. We recommend using | in conjunction with page-break commands such as || and || to help control page breaks.
\begin{decl}
\vert\SLiTeX\vert
\end{decl}
Since no longer exists, the logo is no longer defined in the LATEX kernel. A suitable replacement is |SLITEX|. The logo is defined in LATEX 2.09 compatibility mode.
\begin{decl}
\vert\mho\vert \vert\Join\vert \vert\Box\vert \vert\Diamond\vert \v...
...\vert \vert\lhd\vert \vert\unlhd\vert \vert\rhd\vert \vert\unrhd\vert
\end{decl}
These symbols are contained in the LATEX symbol font, which was automatically loaded by LATEX 2.09. However, TEX has room for only sixteen math font families; thus many users discovered that they ran out. Because of this, LATEX does not load the LATEX symbol font unless you use the |latexsym| package. These symbols are also made available, using different fonts, by the |amsfonts| package, which also defines a large number of other symbols. It is supplied by the American Mathematical Society. The |latexsym| package is loaded automatically in LATEX 2.09 compatibility mode.