Subclass of:

• aaao:ZE13 Speech Act
• lrmoo:F28 Expression Creation

Superclass of:

• aaao:ZE27 Declaration of Obligation

Scope note:

Instances of promissory agreement event are characterized by formal acts of recognition of a promise between one party and another party for a certain outcome.

Instances of this class comprise explicit acts undertaken following given procedures within a social grouping leading to explicit recognition of a promissory status between two actors. The substance of promissory agreement is an intentional, social act.

Instances of ZE46 Promissory Agreement come about when the specific social procedure required is intentionally and successfully enacted according to the prevalent rules. They end with the successful termination of the act or because of its premature termination.

A successful act of ZE46 Promissory Agreement leads to the generation of an instance of ZE45 Promissory Status, the institutional fact that thereafter holds between two actors until it has been abrogated.

Examples:

• The signing of the Treaty of Fort Laramie (ZE46) on April 29, 1868, between the U.S. Federal Government (E74) and the Sioux Nation (E74)
  (https://www.archives.gov/milestone-documents/fort-laramie-treaty)
• The promise of Barack Obama (ZE46) to the American people to close Guantamo in 2008 Election Campaign
  (https://www.pbs.org/newshour/show/obama-failed-close-guantanamo)

In First Order Logic:

• ZE46(x) ⇒ ZE13(x)
• ZE46(x) ⇒ F28(x)

Outgoing properties:

• aaao:ZP91 generated promise of (is promise generated by) → aaao:ZE59 Plan
• aaao:ZP117 generated promise to (was promisee in) → aaao:ZE36 Persons
• aaao:ZP118 generated promise upon (was promisor in) → crm:E39 Actor