Now, omitting all terms x 1 , … … , x m which are not part of any sequence which is likely to occur with high probability, known as the typical set : A ϵ ϵ ( n ) the new state is | ϕ ϕ m ⟩ ⟩ = ∑ ∑ x ϵ ϵ A ϵ ϵ ( n ) p ( x 1 ) p ( x 2 ) … … p ( x m ) | x 1 A x 2 A … … x m A ⟩ ⟩ | x 1 B x 2 B … … x m B ⟩ ⟩