ASKSAGE: Sage Q&A Forum - Individual question feedhttps://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Sat, 05 Oct 2013 15:46:12 -0500Question on matriceshttps://ask.sagemath.org/question/10416/question-on-matrices/prove that rank(A?B)?rank(A)?rank(B). gneral formSat, 05 Oct 2013 03:34:23 -0500https://ask.sagemath.org/question/10416/question-on-matrices/Comment by kcrisman for <p>prove that rank(A?B)?rank(A)?rank(B). gneral form</p>
https://ask.sagemath.org/question/10416/question-on-matrices/?comment=16956#post-id-16956This is not something Sage can *prove*. Closing as a homework problem.Sat, 05 Oct 2013 15:46:12 -0500https://ask.sagemath.org/question/10416/question-on-matrices/?comment=16956#post-id-16956