fact: Definition inflate_abs {L : lambda_calculus_data} {n} (l : L (S n)) : inflate (abs l) = abs (subst l (extend_tuple (λ i, inflate (inflate (var i))) (var (stnweq (inr tt))))).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.Combinatorics.StandardFiniteSets UniMath.Combinatorics.Tuples