No, I think it is far more fundamental than that. He has no clue about any type of number other than non-negative integers. He may also not know what...
I must admit to finding the question obscurely phrased. As I read the instruction, you are NOT to give an answer in summation notation, but rather to...
Well, despite considerable effort, I have not found an algebraic proof. I do not assert that an algebraic proof is impossible; indeed I am relatively...