Negative Argument

A negative argument is an argument against an idea — a criticism. CF follows CR in holding that negative arguments are the only effective kind.

CF distinguishes two kinds:

• Decisive negative arguments — these refute the IGC outright. They contradict the IGC being true. One counter-example suffices to refute a universal claim.
• Indecisive negative arguments — these point at a problem but don't decisively refute the IGC. In CF, an indecisive argument is not "partial refutation"; it's no refutation at all.

Why negative arguments work

• Asymmetry with positive arguments. It's logically easier to refute a universal claim than to confirm it.
• Errors are tractable. Real-world performance breaks in identifiable ways. Positive traits are usually uncountable and unbounded.
• CF/CR epistemology is about fixing errors. Negative arguments are the data that drive error correction.

Common forms

• "Here's a counter-example to your universal claim."
• "Your claim contradicts fact X."
• "Your argument is internally inconsistent."
• "Your method fails in case Y."

"Decisive negative arguments are reasonably common and accessible. We can find and point out errors such as counter examples or flawed logic." — criticalfallibilism.com