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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/static/fsle.ma".
16 include "basic_2/static/lfxs.ma".
18 (* GENERIC EXTENSION ON REFERRED ENTRIES OF A CONTEXT-SENSITIVE REALTION ****)
20 definition R_fsle_compatible: predicate (relation3 …) ≝ λRN.
21 ∀L,T1,T2. RN L T1 T2 → ⦃L, T2⦄ ⊆ ⦃L, T1⦄.
23 definition lfxs_fsle_compatible: predicate (relation3 …) ≝ λRN.
24 ∀L1,L2,T. L1 ⪤*[RN, T] L2 → ⦃L2, T⦄ ⊆ ⦃L1, T⦄.