Abstract

This book contains three Henriette Hertz Lectures delivered as the annual Philosophical Lectures for the British Academy, covering three genres of philosophical logic. In the first paper, James Higginbotham explores arguments for and against second- and higher-order logic as taken to be motivated by the properties of natural language. R. M. Sainsbury investigates the consequences of treating constraints on reporting speech as guides to meaning, with special reference to indexicals in natural language. In the third paper, Timothy Williamson analyzes an aspect of intensionality, namely that sometimes two coextensive sentential operators do not satisfy the same set of principles, a question important to the iteration of attitudes. Each of these papers is followed by an extensive commentary by a distinguished scholar.