  Automatic verification deals with the validation by means of computers of
correctness certificates. The related tools, usually called proof assistants or
interactive provers, provide an interactive environment for the creation of
formal certificates whose correctness can be assessed in a purely automatic
way. Such systems have applications both in mathematics, where certificates are
proofs of theorems, and in computer science, where certificates testify the
correctness of a given software with respect to its specification.
