Top network posts

• 19 A theorem due to Gelfand and Kolmogorov
• 17 Counting categories with at most $n$ morphisms
• 15 Are there analogies between $\Bbb F_q[x_1,x_2]$ and a suitable object related to $\Bbb Z$?
• 15 Is every contractible space a cone?
• 15 Alternative to Axler's "Linear Algebra Done Right"
• 11 If $m$ and $n$ are distinct positive integers, then $m\mathbb{Z}$ is not ring-isomorphic to $n\mathbb{Z}$
• 10 What's a proof that the angles of a triangle add up to 180°?
• View more network posts →