Logical Form and Truth Conditions

Abstract

So far it has been argued that an intrinsicalist notion of logical form is unable to explain some clear examples of logical properties and logical relations. This is a reason to doubt intrinsicalism, yet it is not a decisive reason. Even if it were granted that an intrinsicalist notion of logical form has a limited explanatory power, it might still be contended that it is our best option, as no other notion can do better. This chapter is intended to complete the case against intrinsicalism by showing that, as far as the logical role is concerned, there is an intelligible extrinsicalist notion of logical form that can do better, the truth-conditional notion. According to the truth-conditional notion, logical form is determined by truth conditions.