# LieAlgebraMap - LieAlgebraMap -- subtraction of Lie homomorphisms

## Synopsis

• Operator: -
• Usage:
u = f - g
• Inputs:
• Outputs:
• u, an instance of the type LieAlgebraMap, the difference of $f$ and $g$

## Description

The symbol - is used as infix notation for the subtraction 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,{a,b}) o3 = f o3 : LieAlgebraMap i4 : g = map(L,M,{b,a}) o4 = g o4 : LieAlgebraMap i5 : describe(f-g) o5 = a => a - b b => - a + b source => M target => L