noun
necessary condition; requirement
Used in logic, mathematics, and everyday contexts for something that must be satisfied. Often contrasted with 十分条件 (sufficient condition).
See also: 十分条件
この仕事には経験が必要条件だ。
Experience is a requirement for this job.
論理学では、必要条件と十分条件を区別する。
In logic, we distinguish between necessary conditions and sufficient conditions.