EntityQ1637549· pop 10· linked from 97 articlesreflexive closureSign in to saveoperation on binary relationsConnectionspartially ordered setEntityordered fieldEntitywell-founded relationEntityordered groupEntityweak orderingEntityordered vector spaceEntitymathematicsEntitytopologyEntitysetEntityequivalence relationEntitymonotonic functionEntitytransitive relationEntitybinary relationEntityreflexive relationEntitylatticeEntityZorn's lemmaEntitysymmetric relationEntityantisymmetric relationEntityorder theoryEntitytotal orderEntityCategoriesBinary relationsClosure operatorsRewriting systems