history of the United States

Deductions

• history of the United States has quality class ⇐ (existence is a class), (history of the United States has quality existence)
• history of a geographic region is for example history of the United States ⇐ (history of the United States is a history of a geographic region), (is a is inverse of is for example)
• history of the United States has quality existence ⇐ (history of the United States is a history of a geographic region), (history of a geographic region has quality existence)
• history of the United States is a history of a geographic region ⇐ (history of a country or state is subclass of history of a geographic region), (history of the United States is a history of a country or state)
• history of a country or state is for example history of the United States ⇐ (history of the United States is a history of a country or state), (is a is inverse of is for example)