Mahin Bagheri; Mehdi Mirzapour; Gholamreza Zakiani
Volume 9, Issue 1 , Summer and Autumn 2018, , Pages 19-52
Abstract
Supposition theory is one of the most important logical- semantic theories which is put forward by medieval logicians in their logical texts and commentaries usually under the discussion topic "Properties of Terms". Since this theory has important consequences and results in logic, philosophy and theology, ...
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Supposition theory is one of the most important logical- semantic theories which is put forward by medieval logicians in their logical texts and commentaries usually under the discussion topic "Properties of Terms". Since this theory has important consequences and results in logic, philosophy and theology, in this paper we will investigate its conceptual and historical origin. We claim that there is a significant and deep (historical and conceptual) bound between the medieval theory of supposition and Aristotle’s theory of fallacies as he has stated in his treatise “sophistical refutations”. The case-by-base study of Aristotle’s fallacy in comparison to the semantical analysis of medieval logicians support this idea that supposition theory is the implicit semantic of Aristotle’s “sophistical refutations” which has been reinterpreted as an explicit and dependent field of study by medieval logicians, and also it has been extended throughout the late medieval ages due to different semantical problems.
