- LieDerivation -- unary negation

• Operator: -

• Usage:

  u = - d

• Inputs:
  • d, an instance of the type LieDerivation,
• Outputs:
  • u, an instance of the type LieDerivation,

i1 : L = lieAlgebra{a,b}

o1 = L

o1 : LieAlgebra

i2 : d = lieDerivation{a a b,b b a}

o2 = d

o2 : LieDerivation

i3 : describe(-d)

o3 = a => (a b a)
     b =>  - (b b a)
     map => id_L
     sign => 0
     weight => {2, 0}
     source => L
     target => L