EntityQ5128418· pop 5· linked from 60 articlesclassification theoremSign in to saveDescribes the objects of a given type, up to some equivalenceConnectionssimple Lie groupEntitymathematicsEntitysurfaceEntityPlatonic solidEntityequivalence relationEntityabelian groupEntitydimension of a vector spaceEntityclassification of finite simple groupsEntityJordan normal formEntitydiscontinuityEntitySylvester's law of inertiaEntityclassificationEntitycanonical formEntityrank–nullity theoremEntitysemisimple Lie algebraEntityArtin–Wedderburn theoremEntityfinitely generated abelian groupEntityenumerationEntitygeometrization conjectureEntitylist of theoremsEntityCategoriesMathematical classification systemsMathematical theorems