Python CommutativeAdditiveSemigroups Examples

Example #1

File: backtrack.py Project: sajedel/testsage

    def __init__(self):
        r"""
        TESTS::

            sage: from sage.combinat.backtrack import PositiveIntegerSemigroup
            sage: PP = PositiveIntegerSemigroup()
        """
        SearchForest.__init__(self, facade = ZZ, category=(InfiniteEnumeratedSets(), CommutativeAdditiveSemigroups(), Monoids()))

Example #2

File: commutative_additive_monoids.py Project: bopopescu/sagelib-1

    def super_categories(self):
        """
        EXAMPLES::

            sage: CommutativeAdditiveMonoids().super_categories()
            [Category of commutative additive semigroups]
        """
        return [CommutativeAdditiveSemigroups()]