... example, δ(0110) = 110.Lemma 1. Let L be the set F act(µ(A∗ 3 )) of all subwords of the words in µ (A∗ 3 ). Letα ∈]7/4, 2[ and v ∈ A∗ 3 , such that:- abcbabcv ∈ L- abcbabcv is α-free.Suppose ... µ.Proposition 2. Let w be a word over A 3 , and u a subword of µ(w). If |u| ≥ 1 8 , then,there exists a unique x ∈ A 3 , a unique y ∈ A 3 , and there exist some unique s, v, p ∈ A∗ 3 ,such that u = sµ(v)p, ... A∗ 3 , su= ǫ suffix of µ(xu), puprefix of µ(yu), such that u = suµ(mu)pu,- There exist some unique xe, ye∈ A 3 , and some unique me, se, pe∈ A∗ 3 , se= ǫ suffix of µ(xe),...