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.’”
