EntityQ1940482· pop 7· linked from 20 articlesopposite ringSign in to saveMathematical conceptConnectionscategoryEntitybimoduleEntitymathematicsEntityInternational Standard Book NumberEntitygroupEntityabstract algebraEntityOCLC, Inc.EntityringEntityfieldEntityisomorphismEntitymonoidEntityidealEntitymoduleEntityOn-Line Encyclopedia of Integer SequencesEntitycommutative ringEntityKlein four-groupEntityantiprismEntitydivision ringEntityalgebra over a fieldEntityring homomorphismEntityCategoriesRing theory