High Quality Content by WIKIPEDIA articles! Set Theory: An Introduction to Independence Proofs is an important textbook and reference work in set theory by Kenneth Kunen. It starts from basic notions, including the ZFC axioms, and quickly develops combinatorial notions such as trees, Suslin's problem, , and Martin's axiom. It develops some basic model theory (rather specifically aimed at models of set theory) and the theory of Gödel's constructible universe L. The book then proceeds to exposit the method of forcing. Through exercises, the reader learns to apply the method to prove logical independence results in set theory. This book is not really for beginners, but graduate students with some minimal experience in set theory and formal logic will find it a valuable self-teaching tool, particularly in regards to forcing. Some find it easier to read than a true reference work such as Thomas Jech's Set Theory.