双そう対つい

noun

duality

Mathematical term referring to a correspondence between two structures, such as dual spaces or dual polyhedra.

• ベクトル空くう間かんの双そう対つい空くう間かんを考かんがえる。

  Consider the dual space of a vector space.

• 正せい多た面めん体たいの双そう対ついはまた正せい多た面めん体たいになる。

  The dual of a regular polyhedron is also a regular polyhedron.