Rethinking Division by Negatives: A Distribution-Centric View

الملخص

This paper re-examines division by negative numbers through a distribution-centric lens and then focuses on the canonical case negative over negative. In classical algebra, sign rules yield identities such as , which are internally consistent and indispensable for symbolic manipulation. However, when division is interpreted as allocating a quantity into real, positive, countable groups, negative divisors lack any ontological referent there are no negative groups, and (in ordinary settings) no “negative items” to distribute. We formalize this gap between symbolic algebra and realistic interpretation by distinguishing symbolic validity from distributive meaning. Within this framework, division by zero is treated as a non-operation, and any division with a negative divisor including  is classified as symbolic-only rather than a realizable act of allocation. A comparative analysis across mathematics, physics, economics, and education illustrates where sign rules succeed formally yet fail conceptually. We conclude with a proposed usage policy that preserves algebraic utility while constraining realistic interpretation, and we outline implications for curriculum design, philosophical clarity, and semantic tagging in computer algebra systems.