EntireRing¶
catdef.spad line 350 [edit on github]
Entire Rings (non-commutative Integral Domains), i.e. a ring not necessarily commutative which has no zero divisors.
- 0: %
from AbelianMonoid
- 1: %
from MagmaWithUnit
- *: (%, %) -> %
from Magma
- *: (Integer, %) -> %
from AbelianGroup
- *: (NonNegativeInteger, %) -> %
from AbelianMonoid
- *: (PositiveInteger, %) -> %
from AbelianSemiGroup
- +: (%, %) -> %
from AbelianSemiGroup
- -: % -> %
from AbelianGroup
- -: (%, %) -> %
from AbelianGroup
- ^: (%, NonNegativeInteger) -> %
from MagmaWithUnit
- ^: (%, PositiveInteger) -> %
from Magma
- annihilate?: (%, %) -> Boolean
from Rng
- antiCommutator: (%, %) -> %
- associates?: (%, %) -> Boolean
associates?(x, y)
tests whetherx
andy
are associates, i.e. differ by a unit factor.
- associator: (%, %, %) -> %
from NonAssociativeRng
- characteristic: () -> NonNegativeInteger
from NonAssociativeRing
- coerce: % -> OutputForm
from CoercibleTo OutputForm
- coerce: Integer -> %
from NonAssociativeRing
- commutator: (%, %) -> %
from NonAssociativeRng
- exquo: (%, %) -> Union(%, failed)
exquo(a, b)
either returns an elementc
such thatc*b=a
or “failed” if no such element can be found.
- latex: % -> String
from SetCategory
- leftPower: (%, NonNegativeInteger) -> %
from MagmaWithUnit
- leftPower: (%, PositiveInteger) -> %
from Magma
- leftRecip: % -> Union(%, failed)
from MagmaWithUnit
- one?: % -> Boolean
from MagmaWithUnit
- opposite?: (%, %) -> Boolean
from AbelianMonoid
- recip: % -> Union(%, failed)
from MagmaWithUnit
- rightPower: (%, NonNegativeInteger) -> %
from MagmaWithUnit
- rightPower: (%, PositiveInteger) -> %
from Magma
- rightRecip: % -> Union(%, failed)
from MagmaWithUnit
- sample: %
from AbelianMonoid
- subtractIfCan: (%, %) -> Union(%, failed)
- unit?: % -> Boolean
unit?(x)
tests whetherx
is a unit, i.e. is invertible.
- unitCanonical: % -> %
unitCanonical(x)
returnsunitNormal(x).canonical
.
- unitNormal: % -> Record(unit: %, canonical: %, associate: %)
unitNormal(x)
tries to choose a canonical element from the associate class ofx
. The attribute canonicalUnitNormal, if asserted, means that the “canonical” element is the same across all associates ofx
ifunitNormal(x) = [u, c, a]
thenu*c = x
,a*u = 1
.
- zero?: % -> Boolean
from AbelianMonoid
BiModule(%, %)