133. Is an assignment a contract?
134. What are the elements of a valid assignment?
135. Does an assignment require a consideration?
136. Write an assignment of a simple contract.
137. Define several liability.
138. Can a party be jointly and severally liable on the same contract?
139. If two parties are jointly liable on a contract can one of them be sued thereon without the other?
140. If two parties are severally liable on the same contract, can both be sued together thereon?
141. Define liability in solido. Give an example of liability in solido.
142. How may a contract be discharged by performance? Give an example of a contract discharged by performance.