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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/rt_equivalence/cpcs_lsubr.ma".
16 include "basic_2/dynamic/lsubv_lsubr.ma".
18 (* LOCAL ENVIRONMENT REFINEMENT FOR NATIVE VALIDITY *************************)
20 (* Forward lemmas with context-sensitive r-equivalence for terms ************)
22 (* Basic_2A1: uses: lsubsv_cprs_trans *)
23 lemma lsubv_cpcs_trans (h) (a) (G): lsub_trans … (cpcs h G) (lsubv h a G).
24 /3 width=6 by lsubv_fwd_lsubr, lsubr_cpcs_trans/