Functions with attributes OneIdentity, Flat, or Orderless

All symbols built into the Mathematica kernel (Version 3.0, 4.0) with one or more of the attributes OneIdentity,  Flat, or Orderless are listed in the table below.  This table shows a circle  to indicate that a certain function has one of the attributes.

OneIdentity Flat Orderless
Max ● ● ●
Min ● ● ●
Plus ● ● ●
Times ● ● ●
Xor ● ● ●
And ● ●
Composition ● ●
Dot ● ●
Intersection ● ●
Join ● ●
NonCommutativeMultiply ● ●
Or ● ●
StringJoin ● ●
Union ● ●
Power ●
ArithmeticGeometricMean ●
Multinomial ●
GCD † ● ●
LCM † ● ●
DiracDelta ‡ ●
KroneckerDelta ‡ ●
DiscreteDelta ‡ ●
UnitStep ‡ ●


†   GCD, LCM  have the attributes Flat, Orderless in Version 4.0, but
not in Version 3.0.

‡  Functions new to the kernel as of version 4.0.

Created by Mathematica  (May 17, 2004)