Dvojitá prefixace a sémantika sloves pohybu

In this paper, the author discusses the aspectual system of Czech and in particular, the prefix combinations in verbs. Following the arguments of Gehrke (2009) and the general model of Zwarts (2005), he argues that as upward monotone vectors, the goal prefixes 'do-' and 'pri-' cannot be modified by the measure prefix 'po-' (there are no verbs such as *po-do-skocit or *po-pri-jet). He then offers a formal treatment of paths and events homomorphism for motion verbs in Czech. Based on the examined data, the author argues in favor of keeping separate two distinctions in the aspectual system of Czech: telicity and perfectivity. The paper as a whole is dedicated to the integration of the formal treatment of Czech aspect with vector space semantics for preposition phrases and prefixes.