ATLAS OF LANGUAGE

AT-134-037 · ATLAS 251

Defeasible Inference

An inference that holds under normal assumptions but can be retracted by additional information.

Explanation

An inference that holds under normal assumptions but can be retracted by additional information. Reasonable inference is revealed as a dynamic network, not merely as an irrefutable deduction.

Example

Birds usually fly; Tweety is a bird; therefore, Tweety flies—as long as nothing to the contrary is known.

Counterexample

A formally valid deductive inference is not invalidated by new facts.

Distinction

Distinction from abduction: A formally valid deductive inference is not rendered invalid by new facts.

Effect on thought and perception

Reasonable inference is revealed as a dynamic network, not merely as an irrefutable deduction.

Resonance

Defeasible inference makes a directed relationship perceptible: Reasonable inference is revealed as a dynamic network, not merely as an irrefutable deduction.

Cite this entry

Reich, Michael (Hrsg./ed.): „Defeasible Inference“. Atlas der Sprache, AT-134-037. ATLAS 251, data model 1.6.0. https://atlasoflanguage.com/concept/AT-134-037

https://atlasoflanguage.com/concept/AT-134-037

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