14 Jul
2020
14 Jul
'20
4:08 p.m.
CAUTION: The Sender of this email is not from within Dalhousie. Dear all, If I am not mistaken the characterization of free groups by its universal property has first been shown in the late 1920s. Does anybody know a reference? Hans-E. Porst -- Hans-E. Porst porst@uni-bremen.de <mailto:porst@uni-bremen.de> [For admin and other information see: http://www.mta.ca/~cat-dist/ ]