Top network posts

• 83 Are there non-scalar endomorphisms of the functor $V\mapsto V^{**}/V$?
• 53 Quick proofs of hard theorems
• 45 Simultaneous diagonalization of commuting linear transformations
• 35 Examples of patterns that eventually fail
• 33 Why is the difference of distinct roots of irreducible $f(x)\in\mathbb{Q}[x]$ never rational?
• 33 What is your favorite proof of Tychonoff's Theorem?
• 28 How to show that $\det(AB) =\det(A) \det(B)$?
• View more network posts →