Fixed Points and Interacting Subjects

Presents the fixed‐point paradigm and its aspects from vector algebra to dynamical systems, not forgetting eigenbehaviours. Then considers the problem of subjects (and objects) in interaction, using the author's concepts of observation operator, pragmatical operator and epistemo‐praxiological loop which give rise to the intervention of a fixed point. More precise conclusions are obtained in the recurrent case. A comparison is made with Heinz von Förster's views on subject and object.