A lattice is an abstract structure studied in the mathematical subdisciplines of order theory and Abstract Algebra. It consists of a partially ordered set in which every pair of elements has a unique supremum (also called a least upper bound or join) and a unique infimum (also called a greatest lower bound or meet). An example is given by the power set of a set, partially ordered by inclusion, for which the supremum is the union and the infimum is the intersection
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Author of the notes: Antonio J. Pan-Collantes
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