ABSTRACT:
The basic structure of antilogic is examined as a way of thinking exercised by the Sophists. It is sustained that, although fallacies of the non-formal type may be found in antilogic arguments, they have structures that currently may be reconstructed as schemes of logical validity. Specifically, two examples of Sophist argumentation are analyzed: the so-called Double Discourses, anonymous texts from the 4th century b.c., and Gorgias' main works. Eight arguments of valid logical structure are identified in them.
KEYWORDS:
antilogic; Double Discourses; logic; Sophist
