Although induction is omnipresent, inductive theorem proving in the form of descente infinie has not yet been integrated into full first-order deductive calculi. We present such an integration for (possibly even higher-order) classical logic. This integration is based on lemma and induction hypothesis application for free variable sequent and tableau calculi. We discuss the appropriateness of these types of calculi for this integration. The deductive part of this integration requires the first combination of raising, explicit variable dependency representation, the liberalized -rule, and preservation of solutions.