"Pairs of inextricable, dynamic, complementary aspects. Crucial to both occidental Dialectic and oriental principle of yin~yang."

(CP) Pairs of complementary aspects, written in the syntax developed by Kelso and Engstrøm “ca1~ca2” where ca stands for complementary aspect, and the squiggle sign (~) symbolizes their complementary aspects, and indicates that coordination dynamics is relevant to descriptions of this complementarity. Also called “squiggles”, as the complementary aspects are thought to be idealized extrema of phenomena which include them and all that lies between and around them.