Saving logic from a metaphysical limbo. Susanne Langer on logical assertion

Can a logic free from psychological considerations be free from metaphysical ones? The topic of this paper is Susanne Langer’s discussions of the notion of logical assertion, which aim at addressing this question. We will see both that Langer’s remarks are of historical interest and that they can help us understand better what logic should be taken to be concerned with, and what logical assertion should be taken to be.