Extensional Pruning

Reviewed by Mattias Durán Santis, co-founder of DebateTournament.org. Last updated 7 October 2026.

Extensional pruning saves a generalization from a counterexample by redefining the term to exclude it, as in "no true Scotsman would do that". Debaters answer by showing the definition was changed after the fact to avoid the counterexample.

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