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from sage.libs.singular.decl cimport * 

from sage.rings.ring cimport Ring 

from sage.structure.element cimport RingElement, Element 

from sage.structure.parent cimport Parent 

from sage.libs.singular.function cimport RingWrap 

from sage.rings.polynomial.multi_polynomial_libsingular cimport MPolynomialRing_libsingular 

  

from sage.libs.singular.decl cimport wFunctionalBuch 

  

from sage.libs.singular.decl cimport p_Totaldegree 

  

cdef extern from *: 

ctypedef long Py_hash_t 

  

cdef class NCPolynomialRing_plural(Ring): 

cdef object __ngens 

cdef object _c 

cdef object _d 

cdef object __term_order 

cdef public object _has_singular 

cdef public object _magma_gens, _magma_cache 

  

cdef ring *_ring 

# cdef NCPolynomial_plural _one_element 

# cdef NCPolynomial_plural _zero_element 

  

cdef public object _relations,_relations_commutative 

pass 

  

cdef class ExteriorAlgebra_plural(NCPolynomialRing_plural): 

pass 

  

cdef class NCPolynomial_plural(RingElement): 

cdef poly *_poly 

cpdef _add_(self, other) 

cpdef _mul_(self, other) 

cpdef _repr_short_(self) 

cdef long _hash_c(self) 

cpdef is_constant(self) 

# cpdef _homogenize(self, int var) 

  

cdef NCPolynomial_plural new_NCP(NCPolynomialRing_plural parent, poly *juice) 

  

cpdef MPolynomialRing_libsingular new_CRing(RingWrap rw, base_ring) 

cpdef NCPolynomialRing_plural new_NRing(RingWrap rw, base_ring)