let id = Tacticals.id_tac
let injection = DiscriminationTactics.injection_tac
let intros = PrimitiveTactics.intros_tac
+let inversion = Inversion.inversion_tac
let lapply = FwdSimplTactic.lapply_tac
let left = IntroductionTactics.left_tac
let letin = PrimitiveTactics.letin_tac
let split = IntroductionTactics.split_tac
let symmetry = EqualityTactics.symmetry_tac
let transitivity = EqualityTactics.transitivity_tac
+let unfold = ReductionTactics.unfold_tac
let whd = ReductionTactics.whd_tac