not be terribly surprised if I suddenly recognized the same
idea in the work of Peirce, DeMorgan, or even Newton, for that matter.

| Ulam, S.M. &amp; Bednarek, A.R.,
|&quot;On the Theory of Relational Structures and Schemata for Parallel Computation&quot;,
| in Ulam &amp; Bednarek (eds.), 'ABA', pp. 477-508, report dated 1977.
|
| Ulam, F. &amp; Bednarek, A.R. (eds.),
|'Analogies Between Analogies:
| The Mathematical Reports of S.M. Ulam and his Los Alamos Collaborators',
| University of California Press, 