Welcome to the web sites of John F. Sowa and Cora Angier Sowa.

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Plato and Aristotle at the School of Athens, by Raphael.

Cora Sowa's web site devoted to the publications and software of Minerva Systems.

Minerva Systems

John Sowa's web site devoted to knowlege representation and related topics of logic, ontology, and conceptual graphs.

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