title: Check if cell array is a subset of a nother in Matlab
body: <p>I have two cell arrays of strings as follows</p>
  
  <pre><code> A={{a,b},{c},{d,e}}
   B={{a,b},{c,d},{e}}
  </code></pre>
  
  <p>I want to check if A is a subset of B, meaning that each cell in A has a super-cell in B.  In the given example it is not since A contains {d,e} while B does not have any cell that has those or more elements.
  I think ismember should be useful in this case, but I just could not write down the logic.</p>
  
  <p>Thank you!</p>