The logic of inquiry requires a renegotiation of truth, a concept of truth that emerges as inquiry progresses. The model of emerging truth (MET) attempts to capture this in a metamathematical construction, drawing upon the structure of physical chemistry as a paradigm of successful inquiry. The MET yields a hierarchical theory of warrant strength relevant to both formal and informal logic. The book situates the MET within the context of argumentation theory, informal logic and critical thinking. It contrasts the naturalistic approach of a science-based account of logic and epistemology with...