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""" Abstract base class for commutative algebras """
#***************************************************************************** # Copyright (C) 2005 William Stein <wstein@gmail.com> # # Distributed under the terms of the GNU General Public License (GPL) # # This code is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # The full text of the GPL is available at: # # http://www.gnu.org/licenses/ #*****************************************************************************
from sage.rings.ring import CommutativeAlgebra
def is_CommutativeAlgebra(x): """ Check to see if ``x`` is a :class:`CommutativeAlgebra`.
EXAMPLES::
sage: sage.rings.commutative_algebra.is_CommutativeAlgebra(sage.rings.ring.CommutativeAlgebra(ZZ)) True """ |