Books by J. Roger (University of Wales Hindley

This book gives an account of combinatory logic and lambda-calculus. The grammar and basic properties of both systems are discussed, followed by explanations of type-theory and lambda-calculus models. The treatment is as non-technical as possible with many examples and exercises.

This book introduces and teaches the techniques of type theory by focusing on one particularly neat system and studying it in detail. In this way, all the key ideas are covered without getting involved in the complications of more advanced systems, but concentrating rather on the principles that make the theory work in practice.