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linear algebra - how to prove the following statement about null and column spaces?
linear-algebra matrices vector-spaces proof-writing share | cite | improve this question edited hours ago simon fraser silver badges bronze badges asked hours ago tuna özateş tuna özateş bronze badges $\endgroup$ $egingroup$ that's the rank-nullity theorem?...
https://math.stackexchange.com/questions/3494515/how-to-prove-the-following-statement-about-null-and-column-spaces