title: Is there a way to override LaTeX's errors about double subscripts and superscripts?
body: <p>Minor point about LaTeX that bothers me. When one writes  </p>
  
  <pre><code>a^b^c, a_b_c  
  </code></pre>
  
  <p>or  </p>
  
  <pre><code>a'^b  
  </code></pre>
  
  <p>in math mode, LaTeX gives an error message complaining about multiple super/subscripts. This is particularly annoying after replacing a string containing a super/subscript or when using the apostrophe, <code>'</code>.  </p>
  
  <p>Is there a way to override the error and have LaTeX simply output  </p>
  
  <pre><code>a^{bc} a_{bc} {a'}^b  
  </code></pre>
  
  <p>and so on?</p>