EntityQ985704· pop 8· linked from 4 articleshorizontal line testSign in to savetest for the bijectivity of a functionConnectionsmathematicsEntityInternational Standard Book NumberEntityfunctionEntityreal numberEntityCartesian productEntityinverse functionEntitygraph of a functionEntitybijectionEntityinjectionEntitysurjective functionEntityif and only ifEntitymonotonic functionEntityvertical line testEntityJames StewartEntityCategoriesBasic concepts in set theory