Feitosa, H. A.D'Ottaviano, IML2014-05-202014-05-202001-03-30Annals of Pure and Applied Logic. Amsterdam: Elsevier B.V., v. 108, n. 1-3, p. 205-227, 2001.0168-0072http://hdl.handle.net/11449/35825In this paper we introduce the concept of conservative translation between logics. We present some necessary and sufficient conditions for a translation to be conservative and study some general properties of logical systems, these properties being characterized by the existence of conservative translations between the systems. We prove that the class constituted by logics and conservative translations between them determines a co-complete subcategory of the bi-complex category constituted by logics and translations. (C) 2001 Elsevier B.V. B.V. All rights reserved.205-227engArtigo10.1016/S0168-0072(00)00046-4WOS:000168044400010Acesso abertoWOS000168044400010.pdf