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…
An introduction rule in logic defines how to logically infer a connective within a proof. It's a fundamental concept in…
An inference rule is a logical structure that permits deriving conclusions from premises. It specifies the valid steps in reasoning,…
Exportation is a logical principle that rewrites (P AND Q) -> R as P -> (Q -> R). It effectively…
A rule of inference in logic that allows the introduction of an existential quantifier (∃). It asserts the existence of…
Existential instantiation is a logical rule enabling the inference of a specific individual's existence from a generic existential statement. It's…
Existential generalization is a rule of inference that permits concluding that something exists with a specific property. This conclusion is…
An elimination rule in logic simplifies formulas by removing connectives or quantifiers. It's crucial for deriving conclusions from premises, forming…
The principle of double negation introduction states that for any proposition P, P implies the double negation of P (¬¬P).…