non-uniqueness

Not one-of-a-kind

Non-uniqueness is the quality of not being one of a kind.

In mathematics and logic, a solution has non-uniqueness when multiple answers satisfy the same conditions: The non-uniqueness of the solution means we need additional constraints.

More broadly, it describes anything that isn't singular or distinctive: The non-uniqueness of his argument weakened his case.

identity

interchangeability

Quality of being swappable

sameness · uniformity · conformity · replaceability · standardization · homogeneity · commodification · mass production · cloning · duplication

mathematical

degeneracy

Moral or physical decline

indeterminacy · singularity · isomorphism · symmetry · invariance · mapping · cardinality · kernel · ambiguity

philosophical

contingency

Uncertain possible event

indeterminacy · alternative · possibility · variability · interpretation · subjectivity · constructivism · nominalism · particularity

scientific

reproducibility

Ability to repeat findings

measurement error · probability distribution · quantum superposition · decoherence · observer effect · randomness

Opposites
singularity vs. multiplicity

non-uniquenessuniqueness

Quality of being singular

singularity · individuality · distinctiveness · originality · irreplaceability

distinctiveness

non-uniquenessuniqueness

Quality of being singular

distinctiveness · specialness · differentiation · peculiarity · idiosyncrasy

mathematical/logical distinctness

non-uniquenessuniqueness

Quality of being singular

determinacy · definiteness

Family

non, unique, uniqueness, uniquely, unity, unite, united, unites, uniting

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