The following claim and its proof are poorly written. They are both missing important information. Explain why both the claim and its proof are poorly written, then revise both the claim and proof so that any student in this course will understand it. Claim. If x2 = 0 then x2 > 0 Proof. If x > 0, then x2 = xx > 0. If x < 0, then x > 0, so (x) (x) > 0. i.e., x2 > 0