有ゆう理り

noun which may take the genitive case particle 'no'

rational; logical

Describes something based on reason or logic, often used in formal or academic contexts. Commonly appears in compounds like 有理的 (rational) or 有理数 (rational number).

• 彼かれの主しゅ張ちょうは有ゆう理りだと思おもう。

  I think his argument is rational.

• 有ゆう理り的てきな判はん断だんが求もとめられる。

  A rational judgment is required.

noun which may take the genitive case particle 'no'

rational (number or function)

Mathematics term. Used in phrases like 有理数 (rational number) and 有理関数 (rational function).

• 有ゆう理り数すうは分ぶん数すうで表あらわせる数かずです。

  Rational numbers are numbers that can be expressed as fractions.