Counterexample

A counterexample is a single case that disproves a general claim. One is enough: a universal statement falls to one exception. This is the core move behind weaken questions that attack generalizations.

Example

"All meetings run long" is refuted by one meeting that ended on time.

See also

• Hasty Generalization
• Weaken
• Valid Argument

Back to the full glossary

Last updated October 12, 2026