Open AccessThe Internalist Justificatory Function of Reductio Ad Absurdum
Author(s) -
Manuel Arnulfo Cañas Muñoz
Publication year - 2021
Publication title -
logiko-filosofskie študii
Language(s) - English
Resource type - Journals
eISSN - 2223-3954
pISSN - 2071-9183
DOI - 10.52119/lphs.2021.92.99.006
Subject(s) - reductio ad absurdum , externalism , internalism and externalism , argument (complex analysis) , epistemology , philosophy , function (biology) , chemistry , metaphysics , biochemistry , evolutionary biology , biology
In the present essay it is discussed the main features of reductio ad absurdum as a source of justification. These properties are consequences of the employment of contradictions as a reason for proving if a statement is true. Although a valid deductive argument can build an internalistic justification, I would suggest that the justification obtained by reductio ad absurdum cannot be externalist. This is because contradictions as reasons can be considered internal states from different definitions.