Abstract

The aim of this paper is to understand the philosophical role of Collingwood’s proposed logic of question and answer. I shall consider its historical background as a response to Bradley, to the “realists” and to the logical positivists. I shall also consider the similarities and differences between it and modern developments in logics of question and answer and also in anti-realist philosophical logic. In analysing Collingwood’s proposed logic, and its potential for development, I shall attempt a sketch of how it would work out in formal terms. To be sure Collingwood dismissed the symbolism of Russell and Whitehead’s Principia Mathematica as “typographical jargon” and he thought the various artificial logical languages of his time to be “numerous and frightful offspring of propositional logic out of illiteracy”. Nevertheless he did recognise an important role for the logician in articulating his system, namely to identify what it is to be a proposition and what it is to be a question and in doing so to identify what constitutes an “absolute presupposition”. Moreover since Collingwood’s day there have been important developments in logic and semantics, which are expressed through typographical jargon, and yet which are highly relevant to Collingwood’s proposed logic and to its philosophical role.