Semigroups and Their Subsemigroup Lattices 53 compositional' discourse representation theory (DRT)

compositional' discourse representation theory (DRT) and to previous work on abstract objects in DRT (notably work on the semantics of the attitudes)

eine Sammlung von Arbeiten zum Mainstream und zu den Nischen des Fachs

in das Studium in Bezug auf das Mathematiklernen nur wenig erforscht

The topic choosen was Dark Matter

Veranstaltung: Das Zweite Vatikanische Konzil

Semigroups and Their Subsemigroup Lattices 53 compositional' discourse representation theory (DRT)0. 1. General remarks. For any algebraic system A, the set SubA of all subsystems of A partially ordered by inclusion forms a lattice. This is the subsystem lattice of A. (In certain cases, such as that of semigroups, in order to have the right always to say that SubA is a lattice, we have to treat the empty set as a subsystem.) The study of various inter relationships between systems and their subsystem lattices is a rather large field of