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"""Implementation of :class:`SimpleDomain` class. """ 

 

from __future__ import print_function, division 

 

from sympy.polys.domains.domain import Domain 

from sympy.utilities import public 

 

@public 

class SimpleDomain(Domain): 

"""Base class for simple domains, e.g. ZZ, QQ. """ 

 

is_Simple = True 

 

def inject(self, *gens): 

"""Inject generators into this domain. """ 

return self.poly_ring(*gens)