title: Load a single symbol from a LaTeX package
body: <p>When using the MnSymbol package, pdflatex gives two font warnings:</p>
  
  <pre><code>LaTeX Font Warning: Encoding 'OMS' has changed to 'U' for symbol font
  (Font)              'symbols' in the math version 'normal' on input line 120.
  
  LaTeX Font Info:    Overwriting symbol font 'symbols' in version 'normal'
  (Font)                  OMS/cmsy/m/n --&gt; U/MnSymbolF/m/n on input line 120.
  </code></pre>
  
  <p>It turns out that this is probably due to a clash with the AMSSymb package. </p>
  
  <p>Since I need just a few symbols from the package: is there a way to load one symbol from a package, in stead of all?</p>