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GradedLieAlgebras :: ZZ _ ExtAlgebra

ZZ _ ExtAlgebra -- get the zero element

Synopsis

Description

Synopsis

i1 : L = lieAlgebra{a,b}/{a a b,b b a}

o1 = L

o1 : LieAlgebra
i2 : E = extAlgebra(4,L)

o2 = E

o2 : ExtAlgebra
i3 : 0_E

o3 = 0

o3 : E