Set Theory and Logic


Refutation of Gobbay’s Separation Theorem

Authors: Colin James III

The separation theorem of Gobbay takes eight basic cases and four cases for disjunction. None is tautologous. In fact, three groups of the basic cases share unique truth table result values, and one group of the disjunctive cases shares the same truth table result values. This refutes the theorem and adds it as another non tautologous fragment of the universal logic VŁ4.

Comments: 3 Pages. © Copyright 2019 by Colin James III All rights reserved. Respond to author by email only: info@cec-services dot com. See updated abstract at

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[v1] 2019-05-28 14:26:43

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