A sound deductive argument is both valid and has true premises. This means its conclusion must be true, guaranteeing certainty.…
A rule of inference is a logical structure that allows deriving a conclusion from a set of premises. It's fundamental…
Quantity in logic refers to whether a categorical proposition is universal (applies to all members of a class) or particular…
The quantifier shift fallacy occurs when quantifiers like 'all' or 'some' are misplaced, altering the logical meaning of a statement…
Proof by induction is a powerful mathematical technique used to prove statements for an infinite number of cases. It relies…
A method of mathematical proof where a statement is divided into several exhaustive cases. The statement is then proven to…
A syllogistic mood refers to the arrangement of the types of propositions (A, E, I, O) in a categorical syllogism.…
Modus Tollens is a fundamental rule of inference in logic. It states that if a conditional statement is true, and…
Modus Ponens is a fundamental rule of inference in logic. It states that if a conditional statement ('if P then…
The minor term is the subject of the conclusion in a syllogism. It's one of the three key components, alongside…