The Commens Dictionary
Quote from ‘New Elements (Kaina stoiceia)’
Logic, for me, is the study of the essential conditions to which signs must conform in order to function as such. How the constitution of the human mind may compel men to think is not the question; and the appeal to language appears to me to be no better than an unsatisfactory method of ascertaining psychological facts that are of no relevancy to logic.
Logic is the study of the essential nature of signs.