A stipulative definition is an explicit assignment of a specific meaning to a term for the purposes of a discussion, argument, or theory; it establishes how the term will be used within that context without asserting that this newly assigned meaning corresponds to prior ordinary-language usage outside the stipulative context.

Principle

A stipulation fixes the semantic rule for the term within the declared discourse: subsequent uses within that discourse are evaluated against the stipulated meaning rather than against ordinary usage unless scope is explicitly limited.

Demonstration

Illustrative scenario — Situation: In a paper the author announces: 'We shall use

Misapplication

Assuming a stipulative definition overrides ordinary-language or legally established meanings in all contexts; the semantic error is failing to declare the stipulation's scope and thereby conflating a locally fixed usage with general usage.

Consequence

A clear stipulative definition can remove ambiguity within an argument or model, enabling precise inference and avoiding equivocation; conversely, undeclared or implicit stipulations can produce miscommunication, equivocation across discourses, or category errors when participants assume different meanings.

Reversal

A stipulative definition does not alter established meanings outside its declared scope and cannot make empirically false propositions true by definition; when a stipulation conflicts with normative or legal definitions relevant to a domain, its authority is limited to contexts where the stipulation has been accepted.

Boundary

Clearly within: a paper or debate where the author explicitly states 'we will mean X by T' and then uses T accordingly. Boundary case: an implicit working definition used by a research group but not formally announced. Clearly outside: lexical definitions that report ordinary-language usage or ostensive definitions that point to examples rather than assigning a novel usage.

Semantic Tension

Precision ↔ Communicative Common Ground — stipulations increase terminological precision for specialists but can hinder mutual understanding when interlocutors rely on ordinary-language meanings.

Synthesis

Stipulative definitions are deliberate tools for fixing terminology within a bounded discourse; their usefulness depends on explicit scope and awareness of pre-existing meanings to prevent equivocation.