Top Network Posts

• 19 How can I answer this Putnam question more rigorously?
• 14 If $H$ and $K$ are normal subgroups of $G$ and $H \cong K$, prove that $G/H \cong G/K$.
• 11 Is Darth Vader's temple on the exact spot on Mustafar where Anakin was defeated?
• 9 A vector space is finite dimensional if all of its proper subspaces are finite dimensional
• 8 Check or falsify: there is a map $\boldsymbol{S^1 \mapsto S^1 \times S^1}$ surjective.
• 8 What is this strange noise in "Star Wars: The Force Awakens"?
• 8 If $E$ is Banach and $E^*$ is its dual, is every $T:E^*\rightarrow E^*$ an adjoint?
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