An Interpretation of McCall’s “Real Possible Worlds” and His Semantics for Counterfactuals

Abstract

McCall (1984) offered a semantics of counterfactual conditionals based on real possible worlds that avoids using the vague notion of similarity between possible worlds. I will propose an interpretation of McCall's counterfactuals in a formal framework based on Baltag-Moss-Solecki events and protocols. Moreover, I will argue that using this interpretation one can avoid an objection raised by Otte (1987).