traditional logic
Refers to the system of logic developed before modern symbolic logic, often associated with Aristotelian syllogistic logic.
Traditional logic is based on Aristotle's syllogisms.
Symbolic logic, a modern formal system using symbols and mathematical methods, in contrast to the verbal and syllogistic approach of traditional logic.
Compound of 伝統的 (traditional) + 論理学 (logic). The term is a direct translation of the English 'traditional logic'.