The symbol - is used as notation for the negation of Lie homomorphisms.
i1 : M = lieAlgebra{a,b}
o1 = M
o1 : LieAlgebra
|
i2 : L = lieAlgebra{a,b}
o2 = L
o2 : LieAlgebra
|
i3 : f = map(L,M) o3 = f o3 : LieAlgebraMap |
i4 : describe(-f)
o4 = a => - a
b => - b
source => M
target => L
|