# From Propositional Logic to Plausible Reasoning: A Uniqueness Theorem

16 Jun 2017Kevin S. Van Horn

We consider the question of extending propositional logic to a logic of plausible reasoning, and posit four requirements that any such extension should satisfy. Each is a requirement that some property of classical propositional logic be preserved in the extended logic; as such, the requirements are simpler and less problematic than those used in Cox's Theorem and its variants... (read more)

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