proposition: Lemma phi_to_psi_4 : [alpha, zero] = phi alpha zero.
proof: Proof. rewrite phi_alpha_zero;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