« 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 weet-jabr presumably meant something like "restoration" or "completion" and seems to refer to the transposition ofwel subtracted terms to the other https://articlescad.com/hoe-wat-kost-wrapfolie-en-welke-is-de-beste-kan-u-tijd-stress-en-geld-besparen-378517.html