“resolved that there were no weapons of mass destruction in iraq when the u. s. invaded” is an example of a policy proposition?

False

There are three main types of propositions: fact, value and policy.

A fact proposition is a declaratory statement about the state of something. Ex: "Global warming is a threat to human life."A value proposition is one that judges the relative worth of something. Ex. "gender discrimination in the workplace is wrong."A policy proposition is one that advocates for a specific course of action. Ex. "Paternal leave should be as long as maternal leave."

In this example, the sentence is simply declaring that when the U. S. invaded Iraq, there were no weapons of mass destruction. This is a statement of a fact, therefore, it is a fact proposition.