|Term Characters: Motivational||Ground/Goal|
|Term Characters: Operational||Direction/Instrument|
First order connectivities: Interplays
The tetrad is concerned with the change of order. This is exemplified in everyday situations such as that of cooking where raw foodstuffs become a meal. It is exemplified in the activity of the mind, when perceptions are transformed into understanding. Such activities are flexible, orderly and intentional. In mathematics, specification of order requires four terms. We say that ordering activities proceed from four sources.
We simplify by grouping the four terms into two pairs, one concerned with the why (motivational) and the other with the how (operational). Thus each activity arises from an actual ground and has an ideal or goal. Since the activity is intentional and operative, it has direction and an instrument.
In human affairs, we can distinguish two kinds of motivational source, corresponding to ground and goal: need and aspiration. The operational sources can always be grouped according to the two kinds, direction and instrument; the former cognitive and theoretical, the latter involved and practical. Each of the six interplays has a specific interpretation. These have proved useful in understanding the scientific activity.
An extract from The Tetrad a work in progress by Anthony Blake.
References for the Tetrad:
Pythagoras (582-496 BCE)
Pythagorean Aspects of Music
Elemental: The Four Elements From Ancient Greek Science and Philosophy to Ancient Sites Poetry copyright 1998 by Tracy Marks (Torrey Philemon)
Plato (427- 347 BCE)
Four kinds of cognition
Rene Guenon (1886-1951)
THE TETRACTYS and the SQUARE of FOUR
Model of consciousness
Arthur Young (1905-1995)
The Reflexive Universe
Marshall McLuhan (1911-1980)
Nature and the Tetrad
Jacques Marie Émile Lacan (1901-1981)
Hysterical Academies: Lacan's Theory of the Four Discourses
A. J. Greimas (1917-1992)
Plurality of world views
Modern - Hillar
Links to the Compendium: