antisymmetric

Sign flips transposed

Antisymmetric describes a relation where if A stands in that relation to B, and B stands in that relation to A, then A and B must be identical.

The classic example is "less than or equal to" in mathematics: if x ≤ y and y ≤ x, then x = y.

The term appears in logic, set theory, and abstract algebra.

Not to be confused with asymmetric, which forbids any reciprocal relationship whatsoever.

mathematics

matrix

Ordered numerical arrangement

tensor · determinant · eigenvalue · operator · transformation · linear algebra · orthogonal · adjoint · permutation · eigenvector

physics

fermions

Half-spin matter constituents

parity · particle physics · bosons · antiparticles · field theory · quarks · leptons · neutrinos · standard model · superposition

relations

ordering

Placing in sequence

dominance · precedence · divisibility · subset · ancestor · implication · strict order · transitivity · comparability · incomparability

Opposites
mathematical relation symmetry

antisymmetricsymmetric

Equal on both sides

symmetrical · reflexive · commutative · bidirectional · mutual

structural symmetry in general

antisymmetricsymmetric

Equal on both sides

symmetrical · balanced · mirrored · reciprocal · bilateral

Family

symmetry, symmetrical, symmetric, asymmetry, asymmetric, symmetrically, asymmetrically

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