Monism, dualism, trialism, quadrialism and beyond

“Monistic theories (monism) defend a single type of substance that composes reality (for example, matter -materialism-. Others instead claim that the spirit or psyche -panpsychism-).

Dualistic theories (dualism) defend two types of substances (for example, body and mind) or two worlds (earth and sky).

Trialist theories (trialism) defend the existence of three types of substances or three types of realities. The graphic presented here resonates with the doctrine of the three worlds of Karl Popper. In it, Popper divides the world into three categories:

  • World 1: Physical. The world of objects, not only visible, also things that escape the human eye. It is the world of physical objects.
  • World 2: Experience / Feeling. The world of mental processes, conscious or unconscious. It is the place where feelings of pain, pleasure and thought occur. It is the world of subjective experiences.
  • World 3: Ideas / Knowledge. It is the world where objective knowledge is found.

In his book “In search of a better world”, in the first of his articles (“Knowledge and configuration of reality”), Popper speaks of three worlds. World 1, the material; world 2, that of experience, and world 3, that of the products of the human mind; and indicates that it seems clear that world 1 is the creator of world 2.

In a way trialism could be considered a level of complexity sufficient to represent all theories, but from other approaches, it may not be enough, and we have to go to a quadrialism (adding identity as a fourth element) and even go further. A complete simulation environment must support monism, dualism, trialism, quadrialism, etc.”

Source: What are the different types of elements that constitute reality in its most essential aspect?

Trialism of John Cottingham and Kong Derick

Trialism in philosophy was introduced by John Cottingham as an alternative interpretation of the mind–body dualism of Rene Descartes. Trialism keeps the two substances of mind and body, but introduces a third substance, sensation, belonging to the union of mind and body. This allows animals, which do not think like humans, to be regarded as having sensations and not as being mere automata.

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Although composed of two substances, mind and body, the human being possesses distinctive attributes in its own right (including sensations, passions, emotions), and these form a third category, that cannot be reduced to thought or extension.[3] Cottingham has also argued that Descartes’s view of animals as ‘machines’ does not have the reductionistic implications commonly supposed.[4] Finally, Cottingham has explored the importance of Descartes as a moral philosopher, with a comprehensive picture of the good life that draws both on his scientific work (in physiology and psychology) and also on the theistic outlook that informs all his philosophy.[5] Cottingham is co-editor and translator of the three-volume Cambridge edition of The Philosophical Writings of Descartes.[6]

Kong Derick has also introduce the term Derician Trialism, in which he maintains the two substances of mind and body of Descartes and substituted the sensation substance of Cottingham due to it limitations, with the substance he calls Submind, which involves the processes of memories, sensations, emotions and reflexes. He also says that animals do have a submind which makes them to be subconscious.

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