For the duration of this paper x and n will denote respectively a fixed infinite cardinal and a fixed positive integer. Given a finite nonerripty set a of ordinals, we set a + = a -{na} and a-= a -{Ua}, and we let a,, p < Jal, denote the increasing enumeration of a. (IX]")~' will denote the collection of all partitions 2 of [x]" into less than x many pieces Z(P), , 6 < e < x .