SkewCommutative -- an optional argument

Functions with optional argument named SkewCommutative:

• monoid(...,SkewCommutative=>...) -- specify skew commuting variables in the ring
• newRing(...,SkewCommutative=>...) -- see newRing -- make a copy of a ring, with some features changed
• symmetricAlgebra(...,SkewCommutative=>...) -- see symmetricAlgebra -- the symmetric algebra of a module
• tensor(Monoid,Monoid,SkewCommutative=>...) -- see tensor(Monoid,Monoid) -- tensor product of monoids
• tensor(Ring,Ring,SkewCommutative=>...) -- see tensor(Monoid,Monoid) -- tensor product of monoids