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DLOG.  Note A11

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Let me return to Peirce's early papers on the algebra of relatives
to pick up the conventions that he used there, and then rewrite my
account of regular representations in a way that conforms to those.

Peirce expresses the action of an &quot;elementary dual relative&quot; like so:

   | [Let] A:B be taken to denote
   | the elementary relative which
   | multiplie