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4 (* ||A|| A project by Andrea Asperti *)
6 (* ||I|| Developers: *)
7 (* ||T|| The HELM team. *)
8 (* ||A|| http://helm.cs.unibo.it *)
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11 (* v GNU General Public License Version 2 *)
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15 include "static_2/static/fdeq.ma".
16 include "static_2/static/aaa_rdeq.ma".
18 (* ATONIC ARITY ASSIGNMENT ON TERMS *****************************************)
20 (* Properties with sort-irrelevant equivalence on referred entries **********)
22 lemma aaa_fdeq_conf: ∀G1,G2,L1,L2,T1,T2. ⦃G1, L1, T1⦄ ≛ ⦃G2, L2, T2⦄ →
23 ∀A. ⦃G1, L1⦄ ⊢ T1 ⁝ A → ⦃G2, L2⦄ ⊢ T2 ⁝ A.
24 #G1 #G2 #L1 #L2 #T1 #T2 * -G2 -L2 -T2
25 /2 width=5 by aaa_tdeq_conf_rdeq/ qed-.