include "static_2/static/rex_fqup.ma".
include "static_2/static/rdeq.ma".
-(* DEGREE-BASED EQUIVALENCE FOR LOCAL ENVIRONMENTS ON REFERRED ENTRIES ******)
+(* SORT-IRRELEVANT EQUIVALENCE FOR LOCAL ENVIRONMENTS ON REFERRED ENTRIES ***)
(* Advanced properties ******************************************************)
-lemma rdeq_refl: ∀h,o,T. reflexive … (rdeq h o T).
+lemma rdeq_refl: ∀T. reflexive … (rdeq T).
/2 width=1 by rex_refl/ qed.
-lemma rdeq_pair_refl: ∀h,o,V1,V2. V1 ≛[h, o] V2 →
- ∀I,L. ∀T:term. L.ⓑ{I}V1 ≛[h, o, T] L.ⓑ{I}V2.
+lemma rdeq_pair_refl: ∀V1,V2. V1 ≛ V2 →
+ ∀I,L. ∀T:term. L.ⓑ{I}V1 ≛[T] L.ⓑ{I}V2.
/2 width=1 by rex_pair_refl/ qed.
(* Advanced inversion lemmas ************************************************)
-lemma rdeq_inv_bind_void: ∀h,o,p,I,L1,L2,V,T. L1 ≛[h, o, ⓑ{p,I}V.T] L2 →
- L1 ≛[h, o, V] L2 ∧ L1.ⓧ ≛[h, o, T] L2.ⓧ.
+lemma rdeq_inv_bind_void: ∀p,I,L1,L2,V,T. L1 ≛[ⓑ{p,I}V.T] L2 →
+ L1 ≛[V] L2 ∧ L1.ⓧ ≛[T] L2.ⓧ.
/2 width=3 by rex_inv_bind_void/ qed-.
(* Advanced forward lemmas **************************************************)
-lemma rdeq_fwd_bind_dx_void: ∀h,o,p,I,L1,L2,V,T.
- L1 ≛[h, o, ⓑ{p,I}V.T] L2 → L1.ⓧ ≛[h, o, T] L2.ⓧ.
+lemma rdeq_fwd_bind_dx_void: ∀p,I,L1,L2,V,T.
+ L1 ≛[ⓑ{p,I}V.T] L2 → L1.ⓧ ≛[T] L2.ⓧ.
/2 width=4 by rex_fwd_bind_dx_void/ qed-.