Keith Frankish (University of Sheffield): Publications

University of Sheffield
Department of Philosophy

Honorary Reader (Part-time)
University of Crete
Brain and Mind Graduate Program

Adjunct Professor (Part-time)

Department of Philosophy

PhD, 2003

Homepage

Sheffield, South Yorkshire, United Kingdom of Great Britain and Northern Ireland

Areas of Specialization

Areas of Interest

87

Soul Dust: The Magic of Consciousness
Philosophical Quarterly 64 (255): 338-340. 2014.
95

Non-monotonic inference
In K. S. Goodman & Y. M. Goodman (eds.), Encyclopedia of Language and Linguistics, Elsevier. 2006.

In most logical systems, inferences cannot be invalidated simply by the addition of new premises. If an inference can be drawn from a set of premises S, then it can also be drawn from any larger set incorporrating S. The truth of the original premises guarantees the truth of the inferred conclusion, and the addition of extra premises cannot undermine it. This property is known as monotonicity. Nonmonotonic inference lacks this property. The conclusions drawn are provisional, and new information …Read more
In most logical systems, inferences cannot be invalidated simply by the addition of new premises. If an inference can be drawn from a set of premises S, then it can also be drawn from any larger set incorporrating S. The truth of the original premises guarantees the truth of the inferred conclusion, and the addition of extra premises cannot undermine it. This property is known as monotonicity. Nonmonotonic inference lacks this property. The conclusions drawn are provisional, and new information may lead to the withdrawal of a previous conclusion, even though none of the original premises is retracted

Logic and Philosophy of Logic Logic and Philosophy of Logic, Miscellaneous Informal Logic

Keith Frankish