Keywords: NINS then NIS.png An illustration of two functions/mappings the left is neither injective nor surjective and the right is non-injective and surjective en wikipedia 2005-06-28 Jacj wikipedia en Jacj May 2007 Surjective_composition svg original upload log page en wikipedia NINS_then_NIS png 2005-06-28 04 36 Jacj 658×349× 21701 bytes <nowiki>Uploading again with the letter shrunk a bit to 44pt Verdana </nowiki> 2005-06-28 03 52 Jacj 658×349× 21707 bytes <nowiki>Re-uploading in greyscale instead of RGB Jacj </nowiki> 2005-06-28 02 59 Jacj 658×349× 31052 bytes <nowiki>An illustration of two functions/mappings the left is neither injective nor surjective and the right is non-injective and surjective </nowiki> Composition mappings Arrow diagrams of mappings not injective and not surjective |