Reason is a type of thought, and logic involves the attempt to describe a system of formal rules or norms of appropriate reasoning. The oldest surviving writing to explicitly consider the rules by which reason operates are the works of the Greek philosopher Aristotle, especially Prior Analytics and Posterior Analytics. Although the Ancient Greeks had no separate word for logic as distinct from language and reason, Aristotle's newly coined word "syllogism" () identified logic clearly for the first time as a distinct field of study. When Aristotle referred to "the logical" (), he was referring more broadly to rational thought.See this Perseus search, and compare English translations. and see LSJ dictionary entry for , section II.2.b.
Reason is a type of thought, and logic involves the attempt to desc.ribe a system of formal rules or norms of appropriate reasoning. The oldest surviving writing to explicitly consider the rules by which reason operates are the works of the Greek philosopher Aristotle, especially Prior Analytics and Posterior Analytics. Although the Ancient Greeks had no separate word f!or logic as: distinct from lan!guage and reason, Aristotle's newly coined word "syllogism" () identified logic clearly for the first time as a distinct field of st!udy. When Aristotle referred to "the logical" (), he was referring more broadly to rational thought.See this Perseus search, and compare English translations. and see LSJ dictionary entry for , section II.2.b.