* A B C D E F G H I J L M N O P Q R S T U V W Y
I- Id Im In
Inc Ind Inf Ins Int Inv

Informal Logic

Informal Logic: The logic concerned with natural language argumentation. According to the authors, informal logic is the branch of logic whose task is to develop non-rigid formal standards, criteria, procedures for the analysis, interpretation, evaluation, criticism and construction of argumentation in everyday discourse and in disciplined inquiry.

Source: ‘What is Good? What is Bad? The Value of All Values across Time, Place and Theories’ by John McMurtry, Philosophy and World Problems, Volume I-III, UNESCO in partnership with Encyclopedia of Life Support Systems: Oxford, 2004-11.