The Baez-Dolan stabilization hypothesis states that for all a k-tuply monoidal n-category is “maximally monoidal”. In other words, for , a -tuply monoidal -category is the same thing as an -tuply monoidal -category. More precisely, the natural inclusion is an equivalence of higher categories.
For the case of monoideal (n,1)-categories a proof of the stabilization hypothesis appears in