A poset (partially ordered set) is a set with a Partial Order
Chain
Antichain
Upper Bound
Least Upper Bound
Complete Poset
Knaster-Tarski fixed point theorem
Schröder-Bernstein Theorem
A poset (partially ordered set) is a set with a Partial Order
Chain
Antichain
Upper Bound
Least Upper Bound
Complete Poset
Knaster-Tarski fixed point theorem
Schröder-Bernstein Theorem