LessonsNazar, the Movements of Thought, and the Need for LogicQuiz

The word known matters. At minimum, the meanings employed in reasoning must be intelligible. If a term is not understood, one cannot reliably reason with it.

Conceptual information: grasping terms such as human, animal, change, and origination.
Propositional information: a statement such as “Every human is an animal,” used as an accepted premise within an argument.

Taking a premise as granted for analysis is not the same as establishing that it is true. We may test the form of an argument with provisional premises; sound knowledge also requires examining their truth.

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What counts as known information?

Nazar, the Movements of Thought, and the Need for Logic

The word known matters. At minimum, the meanings employed in reasoning must be intelligible. If a term is not understood, one cannot reliably reason with it.

Conceptual information: grasping terms such as human, animal, change, and origination.
Propositional information: a statement such as “Every human is an animal,” used as an accepted premise within an argument.

Taking a premise as granted for analysis is not the same as establishing that it is true. We may test the form of an argument with provisional premises; sound knowledge also requires examining their truth.