November 10th, 2011, 03:40 PM  #1 
Newbie Joined: May 2011 Posts: 3 Thanks: 0  onetoone and onto proof
Prove that if gof is onto and g is onetoone then f is onto.

November 10th, 2011, 04:46 PM  #2 
Global Moderator Joined: Nov 2006 From: UTC 5 Posts: 16,046 Thanks: 938 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms  Re: onetoone and onto proof
Moved to Applied & Set Theory.
