Stratievskaya builds each quadra complex from the quadra's four valued aspects: two evolutionary (+) and two involutionary (−). These are the same four you would get from Model A — but the signs add a layer the unsigned list cannot show: which of the valued aspects the quadra builds outward with, and which it works in a corrective, constraining register.
The complex is Stratievskaya's account, not a canonical Socionics structure and not a description that every member of a quadra will recognise. Her essays present each complex as a characteristic social pressure and a protective response to it. Read them as interpretive portraits with a named source, not as diagnoses.
The pattern is the same every time. The aspect a quadra only ever uses to test or restrain, the next quadra uses to build. Alpha argues about the rules; Beta writes the rulebook. Beta enforces with force; Gamma launches with it. Gamma audits competence; Delta cultivates it. Delta prunes ideas; Alpha lets them run.
That is why the sign is not a property of the aspect. It is a property of what the rest of the configuration is asking that aspect to do.
The four-step cycle closes with no remainder — a property of the signed lists as Stratievskaya gives them. "Handing on" remains a metaphor for that structural relation: no individual changes quadra, and whether the cycle also drives historical change is a much larger claim, made separately by her wider succession theory rather than established in these four essays.
Each information aspect appears exactly twice across the socion's valued sets: once with a plus and once with a minus, in adjacent quadras. There is no aspect that is valued in only one quadra, and none that carries the same sign in two.
Three binary dichotomies should produce 2 × 2 × 2 = eight combinations. Only four exist. The three are not independent: they form a closed Reinin triad, so any two of them fix the third.
Encode each pole as ±1 — Democratic +1, Aristocratic −1; Judicious +1, Decisive −1; Subjectivist +1, Objectivist −1 — and multiply the three for each quadra:
The product is +1 in all four cases. That invariance is the constraint. Four of the eight sign combinations give −1 and correspond to no quadra at all.
This is the same closure property the Reinin Drill demonstrates for the fifteen dichotomies: hold two constant across a group of types and a third is constant too. The quadras are the small group generated by this particular triad.