Fuzzy Logic and Arithmetical Hierarchy IV

From Mathfuzzlog

Authors:	Petr Hájek
Title of the chapter:	Fuzzy Logic and Arithmetical Hierarchy IV
Title of the book:	First-Order Logic Revised
Editor(s):	Hendricks V. Neuhaus F. Pedersen S.A. Scheffler U Wansing H.
Pages:	107-115
Publisher:	Logos Verlag 2004
City:	Berlin
Year:	2004