Coexistent Effects and Coexistent Decompositions

Abstract

The structure of the theory of microsystems presented in this book permits us to make a fundamental characterization of the concept of microsystems without making use of the familiar basic concepts of property and observable. The notions of property and pseudoproperty which were introduced in III, §4 are not fundamental concepts but are derived concepts—derived from the more fundamental concepts of preparation and registration procedure. In III, §4 we have outlined one possible way in which it is possible to begin to separate the notion of a microsystem from the inherent structure associated with preparation and registration procedures. We shall now consider a second way to accomplish this separation. These two methods will be compared in §8.