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DEMJ
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Homework Statement
if [itex]a_k \le b_k[/itex] for all [itex]k \in \mathbb{N}[/itex] and [itex]\sum_{k=1}^{\infty} b_k[/itex] is absolutely convergent, then [itex]\sum_{k=1}^{\infty} a_k[/itex] converges.
Homework Equations
It's either true or false.
The Attempt at a Solution
I think a counterexample to prove it's false is if we let [itex]a_k=-1, b_k = 0[/itex] which satisfies [itex]a_k \le b_k[/itex] and [itex]b_k[/itex] is abs. convergent but [itex]\sum_{k=1}^{\infty} a_k[/itex] diverges.
Is this a correct counterexample?