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4 (* ||A|| A project by Andrea Asperti *)
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7 (* ||T|| The HELM team. *)
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15 set "baseuri" "cic:/matita/test/".
21 inductive vec : nat -> Type :=
23 | vcons : ∀x:A.∀n:nat. vec n -> vec (S n).
25 definition f := λx,n.λv:vec n.vcons x n v.
26 definition g := λn,x.λv:vec n.vcons x n v.
28 include "logic/equality.ma".
30 (* definition xx := f = g. *)
31 theorem xx1 : ∀n.∀x1:vec n.f ? ? x1 = g ? ? x1.