DEFINITION arity_repellent()
TYPE =
∀g:G
.∀c:C
.∀w:T
.∀t:T
.∀a1:A
.arity g (CHead c (Bind Abst) w) t a1
→∀a2:A.(arity g c (THead (Bind Abst) w t) a2)→(leq g a1 a2)→∀P:Prop.P
BODY =
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