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IsTerm

checks if the argument is a term

Syntax 
IsTerm(X: RINGELEM|MODULEELEM): BOOL

Description
The function determines whether X is a term. For a polynomial, a term is a power-product, namely, a product of indeterminates. Thus, x*y^2*z is a term, while 4*x*y^2*z and x*y+z^3 are not. For a vector, a term is a power-product times a standard basis vector, for instance (0, x*y^2*z, 0).

Example 
/**/  Use R ::= QQ[x,y,z];
/**/  IsTerm(x+y^2);
false

/**/  IsTerm(x^3*y*z^2);
true

/**/  IsTerm(5*x^3*y*z^2);
false

/**/  R2 := NewFreeModule(R,2);
--/**/  IsTerm(ModuleElem(R2, [0,x*z])); --***WORK IN PROGRESS***
--true

--/**/  IsTerm(ModuleElem(R2, [x,y])); --***WORK IN PROGRESS***
--false