query: How to prove expression correct
positive_passages.docid: 20691
positive_passages.text: prove that $\frac{(2n)!}{(n!)^2}$ is even if $n$ is a positive integer
negative_passages.docid: 68880
negative_passages.text: propositional calculus problem, how to prove this right or wrong?
negative_passages.docid: 20863
negative_passages.text: how do I prove this inequallity?
negative_passages.docid: 108704
negative_passages.text: Help with proof of $|x+y| \geq |x|-|y|$
negative_passages.docid: 141496
negative_passages.text: Could someone make the proof into a hinted exercise?
negative_passages.docid: 157268
negative_passages.text: Proving a bijection with absolute value
negative_passages.docid: 77026
negative_passages.text: Proof with inequalities
negative_passages.docid: 48606
negative_passages.text: Help with a Predicate Logic homework proof
negative_passages.docid: 143248
negative_passages.text: What approach should I take to establish this logical proof?
negative_passages.docid: 158335
negative_passages.text: Why is this $0 = 1$ proof wrong?
negative_passages.docid: 144713
negative_passages.text: Simple Calculus Proof
negative_passages.docid: 78736
negative_passages.text: Check my proof that $(ab)^{-1} = b^{-1} a^{-1}$
negative_passages.docid: 146822
negative_passages.text: Tips for writing proofs
negative_passages.docid: 103310
negative_passages.text: Evaluation of the following expression
negative_passages.docid: 51922
negative_passages.text: Epsilon Delta Proof: How do I use the definitions to prove
negative_passages.docid: 130722
negative_passages.text: Can you prove this property?
negative_passages.docid: 28541
negative_passages.text: How to prove the mathematical induction is true?