sigma-algebra

algebraic structure closed under numerable union, intersection, and complement.

en-US/ˈsɪɡmə - ˈæld͡ʒəbɹə/
en-GB/ˈsɪɡmə - ˈæld͡ʒɪbɹə/

カテゴリ：

subsetDynkin systemfield of setssigma-ringpi-system