反はん変ぺん性せい

noun

contravariance

Technical term in mathematics, specifically in category theory and related fields, referring to a property of functors that reverse the direction of morphisms.

See also: 反変 (はんぺん)

• 反はん変性ぺんせいは、関かん手しゅが射しゃの向むきを逆ぎゃくにする性せい質しつを指さす。

  Contravariance refers to the property of a functor that reverses the direction of morphisms.