Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ ¹ ² ³ °
 

You are not logged in. #1 20060324 15:41:30
Rational NumbersI need to prove the following: #2 20060324 16:28:02
Re: Rational NumbersAddition on Q is commutative: Character is who you are when no one is looking. #3 20060324 17:14:50
Re: Rational NumbersOh..I didn't notice....you had asked for associativity on Q too... Character is who you are when no one is looking. 