論ろん理り学がく者しゃろんりがくしゃMeanings1nounlogicianA scholar or expert in logic; a person who studies or practices formal reasoning.彼かれは有ゆう名めいな論ろん理り学がく者しゃで、多おおくの論ろん文ぶんを発はっ表ぴょうしている。He is a famous logician and has published many papers.