LessonsNames, Definition, Subject Matter, and Aim of LogicQuiz

لأن المنطقي يعرف حقائق الأشياء، ويعلم أجناسها وفصولها وأنواعها ولوازمها وخواصها
For one trained in logic knows how to consider the realities of things and their genera, differentiae, species, necessary attributes and distinctive properties.

These are technical relations. A genus is shared by more than one species; a species is a universal considered in relation to its individuals; a differentia expresses an essential distinction. A property is a distinctive non-essential attribute, and a necessary concomitant cannot be separated from its subject in the relevant respect.

The Five Universals will be treated later. Here the point is that logic supplies disciplined rules of classification and definition; it does not make every external reality automatically known.

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Logic and the classification of things

Names, Definition, Subject Matter, and Aim of Logic

لأن المنطقي يعرف حقائق الأشياء، ويعلم أجناسها وفصولها وأنواعها ولوازمها وخواصها
For one trained in logic knows how to consider the realities of things and their genera, differentiae, species, necessary attributes and distinctive properties.

These are technical relations. A genus is shared by more than one species; a species is a universal considered in relation to its individuals; a differentia expresses an essential distinction. A property is a distinctive non-essential attribute, and a necessary concomitant cannot be separated from its subject in the relevant respect.

The Five Universals will be treated later. Here the point is that logic supplies disciplined rules of classification and definition; it does not make every external reality automatically known.