Deptartment of Philosophy, Faculty of Humanities, Tarbiat Modares University, Tehran, Iran
Abstract
It is well known that in Aristotelian logic, the analysis of a categorical sentence is three-partite, i.e., “subject”, “predicate” and “copula”. In contrast, in modern logic- Fregean and Russellian- it is bipartite. i.e., “function” and “argument”. Although bipartite analysis is sometimes mentioned in some writings of Aristotelian logicians, scrutiny reveals that the copula is considered, even though it is hidden. It seems that this difference in their analysis is rooted in their approaches: the Aristotelian approach is linguistic, and the modern approach is semantical. In sum, we may say that the modern approach is more logical and has some consequences that are ignored in Aristotelian logic.
