Question

A premise may be introduced at any point in the derivation is called Rule​

Answer 1

Answer:

then what is question.

Answer 2

Rule: A premises may be introduced at any point in the derivation is called Rule​.

Step-by-step explanation:

Inference Theory is a theory that uses the Equivalence and Implication rules to verify the logical correctness of the conclusion of a given set of premises.

Rules of Inference:

• Rule P: At any time during the derivation, a premise can be introduced.
• Rule R: If S is tautologically implied by any one or more of the preceding formulas, it can be added at any point in the derivation.
• Rule CP: If R and set of premises can be used to deduce S, then R S can be inferred solely from the set of premises.