Order isomorphism
= Order isomorphism
{wiki=Order_isomorphism}
Order isomorphism is a concept from order theory, which is a branch of mathematics dealing with the study of ordered sets. Two ordered sets (or posets) are said to be order isomorphic if there exists a bijection (a one-to-one and onto function) between the two sets that preserves the order relations. More formally, let \\( (A, \\leq_A) \\) and \\( (B, \\leq_B) \\) be two ordered sets.