Exportation is a logical principle that rewrites (P AND Q) -> R as P -> (Q -> R). It effectively…
A derivable rule is a logical rule that can be derived from the existing axioms and inference rules of a…
Completeness in logic refers to a system's ability to derive every logically valid formula. It ensures that all truths provable…
The addition rule in formal logic allows inferring a disjunction from a single proposition. It states that if P is…