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File:StrictContent/Relations/equivalent/rec-equivalent1
CVS-ID:
Author:MathML 2 Recommendation
Description:a is equivalent to not not a

Sample Rendering:

Created by: webeq

Your browser's rendering:

equivalent a not not a

Source Code:

<math xmlns="http://www.w3.org/1998/Math/MathML">
         <apply>
            <csymbol cd="logic1">equivalent</csymbol>
            <ci>a</ci>
            <apply>
               <csymbol cd="logic1">not</csymbol>
               <apply>
                  <csymbol cd="logic1">not</csymbol>
                  <ci>a</ci>
               </apply>
            </apply>
         </apply>
      </math>