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

You are not logged in. #1 20060108 02:06:44
Sets (Subsets and Proper Subsets)Hello everyone, #2 20060108 05:36:38
Re: Sets (Subsets and Proper Subsets)Set A is a subset of set B if for every element in A, that element exists in B. "In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..." 