Megaralı Philon’da Koşullu Önerme Anlayışı ve Modern Mantıkta Maddi İçerme Kavramının Oluşumu

Philo of Megara (d. 3rd century BCE) is one the first philosophers who assigned truth values to conditional propositions that can be symbolized as “If A, then B”. He determined minimum criterion for a proposition not bear false value. According this criterion, doesn’t have true antecedent and consequent regarded conditional. Philon’s conception modal terms helps us understand his theory conditionals. We need factual data able assess Philoanian propositions. The discussion about regarding their lost its importance after Stoics until modern era. Frege revitalizes subject by introducing notation presents how ..., …” form different from physical causality. Peirce made contribution symbolic logic conditionals and, explained propoistions in context logical possibility. Russell defined material implication distinguished formal implication. Via implication, Philonian B” understood “A implies