## S4 method for signature 'Objective,numeric'
e1 + e2

## S4 method for signature 'numeric,Objective'
e1 + e2

## S4 method for signature 'Minimize,missing'
e1 - e2

## S4 method for signature 'Minimize,Minimize'
e1 + e2

## S4 method for signature 'Minimize,Maximize'
e1 + e2

## S4 method for signature 'Objective,Minimize'
e1 - e2

## S4 method for signature 'Objective,Maximize'
e1 - e2

## S4 method for signature 'Minimize,Objective'
e1 - e2

## S4 method for signature 'Maximize,Objective'
e1 - e2

## S4 method for signature 'Objective,numeric'
e1 - e2

## S4 method for signature 'numeric,Objective'
e1 - e2

## S4 method for signature 'Minimize,numeric'
e1 * e2

## S4 method for signature 'Maximize,numeric'
e1 * e2

## S4 method for signature 'numeric,Minimize'
e1 * e2

## S4 method for signature 'numeric,Maximize'
e1 * e2

## S4 method for signature 'Objective,numeric'
e1 / e2

## S4 method for signature 'Maximize,missing'
e1 - e2

## S4 method for signature 'Maximize,Maximize'
e1 + e2

## S4 method for signature 'Maximize,Minimize'
e1 + e2