LOGIC (MS 339-1009)
The concepts of one, two, three are inseparably connected. The concept of four (and of any higher number) is a "complication" of three. In this connection CSP's dispute with Sylvester is mentioned.
Categories, Firstness (see also Categories; Feeling; Monad; Quality), Fourthness reduction of (see also Categories), Secondness (see also Categories; Effort; Reaction), Thirdness
LOGIC / CATEGORIOLOGY