This book presents the theory of proper forcing and its relatives from the beginning. No prior knowledge of forcing is required.

Since their inception, the Perspectives in Logic and Lecture Notes in Logic series have published seminal works by leading logicians. Many of the original books

Numbers imitate space, which is of such a di?erent nature —Blaise Pascal It is fair to date the study of the foundation of mathematics back to the ancient Gre

Papers based on a series of workshops where prominent researchers present exciting developments in set theory to a broad audience.

Edited in collaboration with FoLLI, the Association of Logic, Language and Information, this book constitutes the refereed proceedings of the 5th Indian Confere