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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 include "basic_2/reducibility/lfpr_aaa.ma".
16 include "basic_2/computation/lfprs.ma".
18 (* FOCALIZED PARALLEL COMPUTATION ON LOCAL ENVIRONMENTS *********************)
20 (* Properties about atomic arity assignment on terms ************************)
22 lemma aaa_lfprs_conf: ∀L1,T,A. L1 ⊢ T ⁝ A → ∀L2. ⦃L1⦄ ➡* ⦃L2⦄ → L2 ⊢ T ⁝ A.
23 #L1 #T #A #HT #L2 #HL12
24 @(TC_Conf3 … (λL,A. L ⊢ T ⁝ A) … HT ? HL12) /2 width=3/