Top network posts

• 21 Well-Ordering and Mathematical Induction
• 19 Infimum and supremum of the empty set
• 11 $f \in {\mathscr R[a,b]} \implies f $ has infinitely many points of continuity.
• 9 Let $G$ be a finite group and $\phi:G \to K$ be a surjective homomorphism and $n \in \mathbb{N}. $ If $K$ has an element of order $n,$ so does $G.$
• 6 Application of Jensen's inequality to $x^x+y^y+z^z$
• 6 Solve $x-\lfloor x\rfloor= \frac{2}{\frac{1}{x} + \frac{1}{\lfloor x\rfloor}}$
• 6 If $ab+ac+bc=9$ and $a,b,c \geq 1,$ what is the maximum value of $a^2+b^2+c^2?$
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