See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/242492073 A note on double central extensions in exact Mal'tsev categories Article · January 2010 CITATIONS 8 READS 25 2 authors, including: Some of the authors of this publication are also working on these related projects: Logical analysis of natural reasoning; negation-less logic; ideals in categorical algebra. View project Tim Van der Linden Université Catholique de Louvain 49 PUBLICATIONS 327 CITATIONS SEE PROFILE All content following this page was uploaded by Tim Van der Linden on 13 January 2017. The user has requested enhancement of the downloaded file. All in-text references underlined in blue are added to the original document and are linked to publications on ResearchGate, letting you access and read them immediately.