'(·)@allgebrahthe class of geometric problems that can be solved by geometric tools constructed with compass and straight edge6:23 PM · Apr 6, 2017·Twitter Web Client4 Retweets1 Quote Tweet12 Likes
Cause Of Problem@CauseOfProblem·Apr 7, 2017Replying to @CauseOfProblem and @allgebrah(and is not trivially emulated with a compass & ruler)1