Talk:injective

Etymology

"This term was introduced by Nicolas Bourbaki in his treatise Éléments de mathématique." Éléments de mathématique is a series of books, so this etymology is incomplete (book, year, page?). Also "Éléments de mathématique" is a French title which implies that English "injective" comes from French "injectif" which was invented by Nicolas Bourbaki. However, jeff560.tripod.com/i.html states:

1. "The OED records a use of [...] injective in Eilenberg and Steenrod in Foundations of Algebraic Topology (1952)."
2. "However the family of terms is introduced on p. 80 of Nicholas Bourbaki’s Théorie des ensembles, Éléments de mathématique Première Partie, Livre I, Chapitres I, II (1954)."

So if the OED is correct, then the word wasn't invented by Nicholas Bourbaki but by Eilenberg and Steenrod or somebody else before them. -19:31, 7 May 2016 (UTC)