Premises form the units of information for reasoned arguments.

DEFINITION: In the context of empirical science, a premise (or "proposition") is a unit of information in an argument (Layman, 2005).

Practically, a premise is often expressed as a sentence that conveys ONE piece of information. Sometimes, additional sentences clarify the main statement of a premise.

What is a unit of "information?" The two primary types of information that scientists use as premises to structure arguments are ASSUMPTIONS and FACTS.

Clarifications can support both assumptions and facts. Clarifications are not strictly necessary for strong reasoned arguments, and therefore are not as important as facts (or assumptions). However, clarifications may be helpful for explaining premises to the audience.