Determinals

Determinals is a neologism that appears in some theoretical discussions to denote elements that determine the outcome of a system or proposition under a given set of conditions. The term is not part of standard mathematical or scientific vocabulary and has no universally accepted definition, but it is used to capture the idea of factors that decisively fix results rather than merely correlate with them.

A determinal can be any variable, parameter, condition, or proposition that, once specified, fixes the final state of the model or scenario. In this sense, determininals are similar to determinants in everyday language but are not confined to numerical matrices or algebraic calculations. They are context-dependent and can be multiple, with different combinations producing the same outcome.

In practice, determininals are described in discussions of causal modeling, decision theory, and systems thinking. For example, in a decision model, certain critical inputs may be identified as determininals because their values determine the recommended action, regardless of other inputs. In logic or philosophy of science, a determinal proposition might be one whose truth value governs the truth of a dependent claim under specific premises.

Criticism of the term centers on ambiguity and scope. Because determininals lack a formal, widely accepted set of criteria, authors may disagree about which elements count as determininals and how to measure their decisiveness. As a result, determininals are often treated as a provisional organizing concept rather than a standard technical term.

See also: determinant, causal factor, control variable, key variable.