Top network posts

• 19 Simplify, equivalent for (p ∨ ¬q) ∧ (¬p ∨ ¬q)
• 13 The probability of Bus A arriving before Bus B
• 9 How many ordered pairs $(A,B)$ they are if $A$ and $B$ are subsets of $\{ 1,2,3,4,5 \}$ such that $A \cap B = \{1\}$?
• 8 Why is my explanation wrong?
• 7 Understanding a proof about a set being closed
• 7 Can a nonabelian group $G$ have a normal abelian subgroup $H$ with $[G:H]=3$?
• 7 If a group $G\leq S_{13}$ has an element of order $40$, then $G$ has a normal non-trivial subgroup.
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