Cognitive Psychiatry and Operational Necessity: A cognitive reconstruction of the analytic, the synthetic and the necessary in light of recent literature

Abstract

The analytic-synthetic distinction, from Kant to Carnap, Quine, Goodman and Davidson, remains tied to open questions about necessity and the a priori. We argue that part of the difficulty arises because inquiry has focused on the products of cognition (concepts, propositions, formal systems) rather than on the cognitive instrument that produces them. We aimed to state the operational hypothesis, to test it against the literature published between 2021 and 2026 without altering its content, and, in light of that literature, to sharpen its criteria, answer the main objections and derive empirical predictions. Five lines of evidence converge: inference precedes logical words; new knowledge can arise without new observation; geometric cognition works through compositional mental programs; arithmetic, although cultural, remains constrained by a stable cognitive architecture; and current philosophy of logic regards both classical psychologism and Fregean anti-psychologism as overstated. On this basis, we refine the concept of operational necessity with a non-containment criterion, index necessity to the operation, distinguish it from Piaget's genetic epistemology, answer the rule-following problem and locate normativity in the operation itself. We also propose a taxonomy of five sources of necessity (definitional, conceptual, operational, formal and metaphysical) and derive four testable predictions, including a clinical dissociation between definitional and operational necessity. The literature supports shifting the analysis from the propositional product to the operational instrument and makes plausible a necessity grounded in the functional invariants of cognitive operations, without a return to psychologism.