Behavioral and Brain Sciences

Short Communication

Similarity in logical reasoning and decision-making

Horacio Arló-Costa a1
a1 Department of Philosophy, Carnegie Mellon University, Pittsburgh, PA 15213


Normative accounts in terms of similarity can be deployed in order to provide semantics for systems of context-free default rules and other sophisticated conditionals. In contrast, procedural accounts of decision in terms of similarity (Rubinstein 1997) are hard to reconcile with the normative rules of rationality used in decision-making, even when suitably weakened.