双曲幾何学

(1)(mathematics) a non-Euclidean geometry in which the parallel axiom is replaced by the assumption that through any point in a plane there are two or more lines that do not intersect a given line in the plane; "Karl Gauss pioneered hyperbolic geometry"

(2)平行線公準が、平面のどの点においても平面上の一線とは交わらない2つ以上の線があるという前提により置き換えられる非ユークリッドの幾何学

(1)