Consider the following argument and answer the questions that follow : Premises: If James gets the manager's position, then he'll get a raise. If he gets the raise, then he will purchase a new van. James has not purchased a new van. Conclusion: James did not get the manager's position. 1. Write out the propositions and label them using the letters such as p, q, and r, and write out the premises and conclusion symbolically using these labels. (4 marks) Show by using the rules of inference whether the conclusion follows from the premises. (4 marks)