@Book{266374433, editor="Cooper, Stuart B.", title="Sets and proofs: invited papers from Logic Colloquium '97 - European Meeting of the Association for Symbolic Logic, Leeds, July 1997", series="Lecture note series / London Mathematical Society 258", year="1999", publisher="Cambridge Univ. Press", address="Cambridge [u.a.]", keywords="Set theory; Congresses; Proof theory", note="ed. by S. Barry Cooper; John K. Truss", note="Literaturangaben", isbn="0521635497", language="English" }