i1 : S = schurRing(s,5) o1 = S o1 : SchurRing
i2 : a = s_{3,2,1} o2 = s 3,2,1 o2 : S
i3 : instance(a,SchurRingElement) o3 = true
i4 : T = schurRing(S,t,3,GroupActing => "Sn") o4 = T o4 : SchurRing
i5 : b = t_{2,1}+t_3 o5 = t + t 3 2,1 o5 : T
i6 : instance(a*b,SchurRingElement) o6 = true
The object SchurRingElement is a type, with ancestor classes RingElement < BasicList < Thing.
The source of this document is in SchurRings.m2:2610:0.