How do I start proving this? I don't really know where to start.
Asked
Active
Viewed 139 times
0
-
https://math.stackexchange.com/questions/978/how-to-prove-and-interpret-operatornamerankab-leq-operatornamemin-ope – geguze Jan 01 '20 at 22:29
-
5Does this answer your question? How to prove and interpret $\operatorname{rank}(AB) \leq \operatorname{min}(\operatorname{rank}(A), \operatorname{rank}(B))$? – Simon Fraser Jan 01 '20 at 22:34