LessonsNames, Definition, Subject Matter, and Aim of LogicQuiz

أنه علم بقوانين تعصم مراعاتها الذهن عن الخطأ في الفكر
It is knowledge of rules whose observance protects the mind from error in thinking.

Its key expressions are:
Rules: standards for examining thought.
Their observance: not merely knowing the rules but applying them correctly.
Error in thought: faulty conception or inference that prevents proper understanding or conclusion.

The definition therefore means protection through the correct observance of rules, not a magical absence of error.

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The textbook’s definition of logic

Names, Definition, Subject Matter, and Aim of Logic

أنه علم بقوانين تعصم مراعاتها الذهن عن الخطأ في الفكر
It is knowledge of rules whose observance protects the mind from error in thinking.

Its key expressions are:
Rules: standards for examining thought.
Their observance: not merely knowing the rules but applying them correctly.
Error in thought: faulty conception or inference that prevents proper understanding or conclusion.

The definition therefore means protection through the correct observance of rules, not a magical absence of error.