Apparently, this user prefers to keep an air of mystery about them.
23 Can you be 1/12th Cherokee? jan 18
6 Proving that every set in the ring generated by all rectangles can be covered by a finite disjoint union of rectangles mar 16
6 If $f\in A_k(V)$ and $g\in A_l(V)$ show $i_v(f\wedge g)=i_vf\wedge g+(-1)^kf\wedge i_vg$ - I've got the gist, not sure how to write oct 17
6 Vandermonde determinant by induction oct 14 '13
6 Something that isn't continuous can be proven to be continuous (so it is continuous - definitions - but doesn't look it!) mar 23 '14
5 Visualising a group structure. jan 31 '14