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IsZZ

test whether a ring is the ring of integers

Syntax 
IsZZ(R: RING): BOOL

Description
This function tests whether a ring is the ring of integers.

Example 
/**/  R ::= QQ[x,y];
/**/  IsZZ(CoeffRing(R));
false
/**/  IsZZ(BaseRing(CoeffRing(R)));
true

See Also