Consequence is at the heart of logic, and an account of consequence offers a vital tool in the evaluation of arguments. This text presents what the authors term

Logical pluralism is the view that different logics are equally appropriate, or equally correct. Logical relativism is a pluralism according to which validity a

The aim of this book is to correct a common misunderstanding of a technique of mathematical logic.

This wide-ranging collection of essays explores the nature of logic and the key issues and debates in the metaphysics of logic.