A compositional semantics for the game-theoretical interpretation of logic

In a number of publications J. Hintikka argues for a variant of game theoretical semantics for predicate logic in which information can be hidden. Hintikka claimed that no compositional semantics was possible for such an interpretation. However, W. Hodges designed one. Hodges formalization made clear that there are ways to use information in an un expected way: by giving signals to oneself. One might considering it as (unintended) cheating, or say that it is all in the game. The present contribution gives an alternative to Hodges proposal that is considerably simpler, and that tries to avoid such signals.

Theo M.V. Janssen