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 can, extend this progression indefinitely. There is no absolute standard of magnitude. Any term in this progression is large compared to its predecessor and is small compared to its successor.

Again, all special sciences presuppose certain fundamental types of things. Here I am using the word “thing” in its most general sense, which can include activities, colours and other sensa, and values. In this sense, a “thing” is whatever we can talk about. A science is concerned with a limited set of various types of things. There is thus, in the first place, this variety of types. In the second place, there is the determination as to what types are exhibited in any indicated situation. For example, there is the singular proposition — “This is green”; and there is the more general proposition — “All those things are green”. This type of enquiry is what the traditional Aristotelian logic takes care of. Undoubtedly such enquiries are