Cora Diamond

In her Introduction to Wittgenstein’s Tractatus, Elizabeth Anscombe took it to be a fault of the Tractatus that it excluded the statement “‘Someone’ is not the name of someone”, which she took to be obviously true. It is not a bipolar proposition, and its negation, she said, peters out into nothingness. I examine the question whether she is right that the Tractatus excludes such propositions, and I consider her example in relation to other propositions which, arguably at least, have no intelligible negation. In considering the particular case of Frege’s response to Benno Kerry about the concept ‘horse’, I try to develop an account of the place in Wittgenstein’s philosophy for certain sorts of proposition which do not have an intelligible negation.

My essay is concerned with two kinds of case of asymmetries in thinking about thought. If one says that there is nothing else to think but that so and so, one may mean either that there are no considerations which could make it reasonable to think the opposite, or that to think anything else is to be in a muddle, not really to be thinking anything. A case of the latter sort is important in Elizabeth Anscombe’s criticism of Wittgenstein’s Tractatus, while a case of the former sort is important for David Wiggins’s thought about truth in ethics. After setting out the issues, I examine Anscombe’s view and situate it in relation to ideas of Frege’s and Wittgenstein’s. I then turn to ethics and consider the relation between Anscombe’s view and that of Wiggins.