Is an undated agreement a valid agreement?

in agreement with

A postmarital agreement must be executed by both parties voluntarily and will not be valid if one of the parties is under duress or coerced in any way.

agreement (a mutual assent between two or more parties)

Assumptions: * reliable channels messages are eventually delivered to their intended recipients, even in the face of router failure Failure Detectors- can do either by querying a process to see...

No it doesn't.