« It Is not certain just what the terms alang-jabr and muqabalah mean, but the usual interpretation kan zijn similar to that implied in the translation above. The word alang-jabr presumably meant something like "restoration" or "completion" and seems to refer to the transposition ofwel subtracted terms to the other https://bbs.pku.edu.cn/v2/jump-to.php?url=https://nl.wikipedia.org/wiki/Kwaliteit