A discipline that studies the structure, rules, and strategies of persuasive argumentation in natural language, rather than formal mathematical proof. It draws on rhetoric, dialectics, pragmatics, and informal logic. Key concepts include argument schemes (e.g., argument from authority, analogy, cause), burden of proof, argumentation frameworks, and fallacies (ad hominem, straw man, slippery slope). Argumentation logic is not a
single formal system but a toolkit for analyzing and evaluating
real-
world debates, from courtrooms to social media comments. It acknowledges that
people often argue using incomplete information, implicit premises, and persuasive tactics – not formal syllogisms. In online debates, “argumentation logic” is invoked to shift focus from
pure logical validity to practical persuasiveness and dialectical fairness. It reminds participants that
winning an argument is not the same as proving a theorem.
Example: “His deductive argument was
valid, but she used argumentation
logic to point out that he had misrepresented her position (straw man) and that his premise was implausible. ‘Logic isn’t just about form; in
real arguments, relevance and fairness matter.’”
