proposition: Lemma nf_finite_inv : forall gamma n, nf (cons zero zero n gamma) -> gamma = zero.
proof: Proof. inversion 1;auto with T2. inversion H4; lt_clean; auto with T2. Qed.
imports: EPSILON0 Arith List Omega Compare_dec Relations Wellfounded Max Tools More_nat AccP not_decreasing EPSILON0 More_nat Gamma0_prelude Gamma0_length term rpo