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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 *)
10 (* \ / This file is distributed under the terms of the *)
11 (* v GNU General Public License Version 2 *)
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15 include "basic_2/static/aaa_ltpss_sn.ma".
16 include "basic_2/reducibility/ltpr_aaa.ma".
17 include "basic_2/reducibility/cpr.ma".
19 (* CONTEXT-SENSITIVE PARALLEL REDUCTION ON TERMS ****************************)
21 (* Properties about atomic arity assignment on terms ************************)
23 lemma aaa_cpr_conf: ∀L,T1,A. L ⊢ T1 ⁝ A → ∀T2. L ⊢ T1 ➡ T2 → L ⊢ T2 ⁝ A.
24 #L #T1 #A #HT1 #T2 * /3 width=5/