TY - RPRT A1 - Kozen, Dexter A1 - Möller, Bernhard T1 - Separability in domain semirings N2 - First, we show with two examples that in test semirings with an incomplete test algebra a domain operation may or may not exist. Second, we show that two notions of separability in test semirings coincide, respectively, with locality of composition and with extensionality of the diamond operators in domain semirings. We conclude with a brief comparison of dynamic algebras and modal Kleene algebras. T3 - Reports / Technische Berichte der Fakultät für Angewandte Informatik der Universität Augsburg - 2004-16 KW - Halbring Y1 - 2006 UR - https://opus.bibliothek.uni-augsburg.de/opus4/frontdoor/index/index/docId/250 UR - https://nbn-resolving.org/urn:nbn:de:bvb:384-opus4-2017 PB - Institut für Informatik, Universität Augsburg CY - Augsburg ER -