Top network posts

• 10 If $A \cap B$ or $A \cup B$ or $A \times B$ is recursively enumerable is it true to say that both $A$ and $B$ are recursively enumerable?
• 9 Selling blocks of time slots
• 8 Can two different complexity classes be equal relative to an oracle? Example request
• 7 Homework: Smooth mapping $f$ satisfying $f\circ f=f$
• 6 On an equality of $x \bmod 1$
• 6 Name of this rearranging/sorting problem?
• 5 An $n$th root inequality: $\sqrt[n]{n} < 1 + \sqrt{2/n}$
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