Quizzes
Quiz 1 (due 28 Aug at 11:59PM) [soln]: Draw a picture of $\displaystyle\bigcup_{k=0}^{\infty} [2k,2k+1]$
Quiz 2 (due 7 Sep at 11:59PM) [soln]: Use a truth table to show that the following version of DeMorgan's law holds: $\sim (P \vee Q) = (\sim P) \wedge (\sim Q)$.
Quiz 3 (due 25 Sep at 11:59PM) [soln]: Count the permutations of the string "HUNTINGTON".
Quiz 4 (due 7 Oct): Solve Chapter 4 Problem #6
Quiz 5 (due 29 Oct): Disprove the statement "If $x,y \in \mathbb{R}$, then $|x+y|=|x|+|y|$.
Quiz 6 (due 31 Oct): Disprove: "If $n \in \mathbb{Z}$ and $n^5-n$ is even, then $n$ is even."
Quiz 7 (due 11 Nov): Prove that $1^3+2^3+3^3+4^3+\ldots + n^3 = \dfrac{n^2(n+1)^2}{4}$ for every positive integer $n$.