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15 include "basic_2/notation/relations/lazynegatedeq_4.ma".
16 include "basic_2/substitution/lleq.ma".
18 (* NEGATED LAZY EQUIVALENCE FOR LOCAL ENVIRONMENTS **************************)
20 definition llneq: relation4 ynat term lenv lenv ≝
21 λd,T,L1,L2. |L1| = |L2| ∧ (L1 ⋕[T, d] L2 → ⊥).
24 "negated lazy equivalence (local environment)"
25 'LazyNegatedEq T d L1 L2 = (llneq d T L1 L2).