Negation introduction is a natural deduction rule enabling the derivation of negation. It typically involves assuming the opposite and deriving…
Natural deduction is a system of logical inference that aims to emulate human reasoning. It uses introduction and elimination rules…
Existential instantiation is a logical rule enabling the inference of a specific individual's existence from a generic existential statement. It's…
An elimination rule in logic simplifies formulas by removing connectives or quantifiers. It's crucial for deriving conclusions from premises, forming…
Discharge is the act of eliminating an assumption within a logical derivation. It's a crucial step, often used to prove…
The absorption law states that if P implies Q, then adding a conjunction R to P does not alter the…