Natural deduction is not used much in practical formal methods: sequential calculus, as a rule, is the best basis, since it is closer to the table methods used in constructing decision-making procedures for logic. Table methods are quite important for the practical application of logic in computer science.
Natural deduction is most often used in the theory of a constructive type, and this gives it some advantage in the development of a programming language. He believed that he was well acquainted, and should not know.
The primary importance of natural deduction is that it is the finest way to study formal derivation, but it is a didactic application, considered mainly in academic circles.
source share