RT Book, Section T1 Types of bipolarity and bipolar structures A1 Montero De Juan, Francisco Javier A1 Franco De Los Ríos, Camilo A. A1 Gómez González, Daniel A1 Rodríguez González, Juan Tinguaro A2 Wan, Guojun A2 Zhao, Bin A2 Li, Yongming AB In this paper we revise the three types of bipolarity recently proposed by Dubois and Prade, focussing on how the basic structure is being built up. In this way we can clarify key differences between them, and formalize to what extent some structures can be considered bipolar extensions. In particular, We stress the existence of alternative different concepts underlying their type II polarity, which may lead to different 3-valued structures, and the essential complexity underlying their type III polarity. PB World Scientific SN 978-981-4401-52-4 YR 2012 FD 2012 LK https://hdl.handle.net/20.500.14352/45536 UL https://hdl.handle.net/20.500.14352/45536 DS Docta Complutense RD 18 abr 2025