Blackboard Shots with Prefix "Dror"
171108-120536: Ground-ceiling-surgery rotational-virtual-tangles.
160507-112400: Is $\varprojlim_{m\geq n}I^2/I^m=\left(\varprojlim_mI/I^m\right)^2$? (2)
160418-174801: Is $\varprojlim_{m\geq n}I^2/I^m=\left(\varprojlim_mI/I^m\right)^2$?
160413-175613: Uniqueness of the unit in a semi-Hopf-algebra (2).
080704-170934: A long 4 crossing positive knot is a long trefoil.