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Ivancevic_Applied-Diff-Geom

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594 <strong>Applied</strong> <strong>Diff</strong>erential <strong>Geom</strong>etry: A Modern Introductionby the unique form of open Liouville equation, which implies the arrow oftime. The existence of the formal neuro–biological self–similarity has beenproved.4.9.7 Brain–Mind Functorial MachinesIn this section we propose two models of the brain–mind functorial machines:the first one is a psychologically–motivated top–down machine,while the second one is physically–motivated bottom–up solitary machine.4.9.7.1 Neurodynamical 2−FunctorHere we define the goal–directed cognitive neurodynamics as an evolution2−functor E given byAf✲ BE(A)E(f)✲ E(B)CURRENT✲DESIREDh NEURAL g E ✲ E(h) NEURAL E(g)❄ STATE ❄❄ STATE ❄C✲ DE(C) ✲ E(D)kE(k)(4.110)In (4.110), E represents a projection map from the source 2−category ofthe current neural state, defined as a commutative square of small categoriesA, B, C, D, . . . of current neural ensembles and their causal interrelationsf, g, h, k, . . ., onto the target 2−category of the desired neuralstate, defined as a commutative square of small categories E(A), E(B),E(C), E(D), . . . of evolved neural ensembles and their causal interrelationsE(f), E(g), E(h), E(k).The evolution 2−functor E can be horizontally decomposed in the followingthree neurodynamic components (see [Lewin (1997); Aidman andLeontiev (1991)]):(1) Intention, defined as a 3−cell:Need 1 ∗ Need 3INTENTION ❘Motive 1,2 > Motive 3,4✒ Need 2 ∗ Need 4

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