 The original exposition of the theoreticity criterion by Sneed (1979) is a bit more involved as it makes use of set-theoretic predicates and intended applications, rather technical notions of the structuralist approach to scientific theories. There has been a lively discussion, mainly but not exclusively within the structuralist school, how to express the relativized notion of theoreticity most properly (Balzer 1986; 1996). As noted above, Kuhn (1976) proposed a twofold relativization of theoreticity, viz., first to a scientific theory and second to applications of such theories.