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Proof · Rigorous Reasoning · Rigorous Reasoning

Concept · Deductive

Proof

A rule-governed derivation showing that a conclusion follows from a set of premises.

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Why it matters

Proof is the main formal tool used to establish deductive validity.

Where this shows up

Units and lessons using this concept

Following the links will take you to the page where this term is introduced in context.

Units (1)

Natural Deduction: Validity and Formal ProofStudents learn to distinguish validity from truth, translate ordinary arguments into symbolic form, construct short natural-deduction pro…

Lessons (3)

Basic Natural DeductionNatural Deduction: Validity and Formal Proof Capstone: Building and Defending a Complete Deductive ArgumentNatural Deduction: Validity and Formal Proof Diagnosing Invalid Proof StepsNatural Deduction: Validity and Formal Proof

Related

Other concepts in Deductive

Counterexample Entailment Soundness Subproof