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 = mapLie(L,M) o3 = f o3 : MapLie |
i4 : peekLie(-f) o4 = MapLie{a => - a } b => - b sourceLie => M targetLie => L |