Der neue Dienst "GitLab am KIT" ist unter gitlab.kit.edu erreichbar.
(C1 - x) + C2 = (C1 + C2) - x C1 - (x + C2) = (C1 - C2) - x ~(x + C) = (~C) - x (extended from ~(x + -1) = -x) ~(C - x) = x + (~C) -(x + C) = (-C) - x