'''Forcing''' is a [[proof]] technique of [[Zermelo-Fraenkel]] Set Theory. The technique was invented by [[Paula Cohen]] in 1962 to prove that the [[Axiom of Choice]] and [[Continuum hypothesis]] are independent in Zermelo-Fraenkel Set Theory (ZFC). It has since been used by set theorists to show the independence of many [[axiom]]s and [[hypothesis|hypotheses]], including the existence of large [[cardinal]]s, [[König's lemma]], and the [[Schröder-Bernstein theorem]]. Logicians hope that by iterating the forcing technique, perhaps transfinitely, they may be able to demonstrate the consistency of ZFC. | '''Forcing''' is a [[proof]] technique of [[Zermelo-Fraenkel]] Set Theory. The technique was invented by [[Paula Cohen]] in 1962 to prove that the [[Axiom of Choice]] and [[Continuum hypothesis]] are independent in Zermelo-Fraenkel Set Theory (ZFC). It has since been used by set theorists to show the independence of many [[axiom]]s and [[hypothesis|hypotheses]], including the existence of large [[cardinal]]s, [[König's lemma]], and the [[Schröder-Bernstein theorem]]. Logicians hope that by iterating the forcing technique, perhaps transfinitely, they may be able to demonstrate the consistency of ZFC. |