f:AlgebExt
f:AritExpr
f:BaseDom
f:DistPoly
f:Expr
f:ExprFld
f:FStruct
f:Float
f:Fraction
f:IntMod
f:Integer
f:Matrix
f:Numeric
f:Polynom
f:Product
f:Rational
f:RingAdj
f:SqMatrix
f:TrPowSer
f:extoper
