lower bound
any element M of a partially ordered set A which includes a subset B, such that M is lower than or equal to every element of B
en-US/ˈloʊɚ ˈbaʊnd/
en-GB/ˈləʊə ˈbaʊnd/
any element M of a partially ordered set A which includes a subset B, such that M is lower than or equal to every element of B