ijitima al-naqidain Bringing two contradictories together...

ijitima al-naqidain Bringing two contradictories together, which is a logical impossibility; for two contradictories cannot be predicated of the same subject at the same time in the same respect, as contradictories in their very nature exclude each other. This is, however, done to reduce the argument of an adversary in a discussion to a logical absurdity. See also muqati’ and naqidan.

al-ajsad al-saba‘ah "The seven bodies": an expression used by the philosophers to denote seven kinds of minerals or metals: gold (dhahab), silver (fiddah), lead (rasas), black lead (usrub), iron (hadid), copper (nahas) and a hard glass substance (kharsin). al-ajnas al-‘ashr The ten genera, the name given sometimes to the ten Aristotelian categories; see al-maqulat al-‘ashr. ihtijaj To give a logical argument or proof; it has three major modes or kinds: syllogistic…