Denis McManus

This paper explores the place of realist and idealist themes in Wittgenstein’s Tractatus. It takes as its starting point Adrian Moore’s denial that transcendental idealism is present in that text only as an “enemy”—to be “diagnosed and dispelled,” as Peter Sullivan puts it. I question whether reflection on TI can perform the positive task which Moore’s reading assigns to it—in particular, whether coming to recognize its ultimate incoherence leads us to a recognition of “the forces that give this nonsense the appearance of sense in the first place.” On the basis of an understanding of those forces that is present in Moore’s own work, I argue that reflection on the quasi-realist themes manifest in Wittgenstein’s remarks on picturing perform that task more successfully. In this way, I question the special status that Moore assigns to TI in the Tractatus, his claiming—“with... myriad qualifications”—that “Wittgenstein is a transcendental idealist.”

The paper presents an interpretation of the thinking behind the early Wittgenstein's "general form of the proposition." It argues that a central role is played by the assumption that all domains of discourse are governed by the same laws of logic. The interpretation is presented partly through a comparison with ideas presented recently by Michael Potter and Peter Sullivan; the paper argues that the above assumption explains more of the key characteristics of the "general form of the proposition" than Potter and Sullivan suppose, including, in particular, its claim that the bases from which all other propositions are derived must be elementary propositions.