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Books

Barriers to Entailment by Gillian Russell

Christopher John Searle recommends a study of which moves are allowed in logical arguments.

Gillian Russell is Professor of Philosophy at the Australian National University. In her new book Barriers to Entailment: Hume’s Law and Other Limits on Logical Consequence, she ventures into the intricate terrain of obstacles to logical entailment, particularly focusing on Hume’s Law (‘You can’t derive an ought from an is’). According to Russell, a barrier to entailment exists when it is logically illicit to derive a conclusion of one logical type from premises of a different logical type. Philosophy is replete with such violations, and in this intense and ground-breaking book, Russell makes it her aim to expose the principal felons. Her exploration is not just academically rigorous but also timely, addressing core issues in contemporary philosophical discourse and inviting readers to reconsider fundamental aspects of logic and reasoning.

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