๐ŸŒŸ Quality class

= the class of elementary experiences, which are assigned to a given quality point

Formal definition

= a class c of elementary experience is called a quality class if c is totally contained in any similarity circle which contains a considerable part of c and if for every elementary experience x which does not belong to c there exists (at least) one similarity circle which contains c but to which x does not belong. 1

How to identify?



  1. Carnap R. The Logical Structure of the World.; 1963. โ†ฉ