Contracts II
Restatement Second of Contracts § 232
When It Is Presumed That Performances Are to Be Exchanged Under an Exchange of Promises
Where the consideration given by each party to a contract consists in whole or in part of promises, all the performances to be rendered by each party taken collectively are treated as performancesto be exchanged under an exchange of promises, unless a contrary intention is clearly manifested.
Copyright, The American Law Institute