What is another word for order theory?
Pronunciation: [ˈɔːdə θˈi͡əɹi] (IPA) 
Order theory, also known as poset theory, is a branch of mathematics that deals with the study of partially ordered sets, which include relations like greater than, less than and equal to. Just like any other field of study, order theory has a vast vocabulary that includes various terminologies and synonyms. Synonyms for the word "order theory" may include poset theory, partially ordered set theory, lattice theory, and directed sets theory. Poset theory is a more common synonym for order theory, given that every partially ordered set is also a poset. Similarly, lattice theory refers to the study of partially ordered sets where every pair has a unique meet and join.
