TABLE 1
A mathematical model of a psychosomatic system represented in the cross-notation of G. Spencer Brown's calculus of indications, wherein the mathematical steps represented by the arrows in (1) undergo evolutory-devolutory expansion and contraction.
where . As an example illustrating use of the above notation, let us generate (3c) from (3). The temporal aspect derived from the innermost left-hand cross operating upon 0 is equated to the right-hand spatial aspect operating on ¥ : . Multiplying by -1 gives: , and after rearrangement: .