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<TITLE>PM</TITLE></A>
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<B>PM</B> _ _ _  _ _ _  _ _ _  _ _ _ <B>package</B><P>
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Author: Kevin McIsaac 
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PM is a general pattern matcher similar in style to those found in systems 
such as SMP and Mathematica, and is based on the pattern matcher described 
in Kevin McIsaac, ``Pattern Matching Algebraic Identities'', SIGSAM Bulletin, 
19 (1985), 4-13. 
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