'''Note.''' MathJax screws up so badly on this page that it may take a while to find a workaround. In the meantime see the [http://intersci.ss.uci.edu/wiki/index.php/Differential_Logic_:_Introduction InterSciWiki version].
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* '''Note.''' MathJax screws up so badly on this page that it may take a while to find a workaround.<br>In the meantime see the [http://intersci.ss.uci.edu/wiki/index.php/Differential_Logic_:_Introduction InterSciWiki version].