Abstract

Central topics pertaining to the current debate in the philosophy of action concern the distinction between practical and theoretical reasoning, and the nature of a conclusion in a process of reasoning. In this debate the reference to the Aristotelian reflection is recurrent. In four passages from his works, that is MA. 7, 701a7-b1, EN. H 5, 1147a24-31, EE. B 11, 1227b23-33 and EN. Г 5, 1112bl1-24, Aristotle explores some important aspects of practical reasoning making a parallel with the logical structures of theoretical reasoning. In particular he finds specific analogies between practical and theoretical syllogism, practical and theoretical necessity, deliberation and analysis, action and demonstration. In spite of its specifications, the activity of reason shows its unity. Aristotle considers and deepens the constitutive ingredients of theoretical reasoning in the contest of practical philosophy. The comparison between practical and theoretical reasoning has consequently an expositive purpose, because it supports Aristotle's treatment of action theory.