Final answer:
The provision that was not part of the Treaty of Paris in 1783 was 'ceding Florida to the United States'. Florida was returned to Spain, not the United States, as part of a separate agreement.
Step-by-step explanation:
The Treaty of Paris in 1783 had several key provisions that reshaped the geopolitical landscape of North America. This treaty was the culmination of the American Revolution, wherein Great Britain recognized the independence of the United States.
The provisions of the Treaty of Paris included: recognition of American independence, establishment of the nation's boundaries with the Mississippi River as the western boundary, the cession of British territories to the United States, and the return of confiscated property to Loyalists.
However, one provision that was not part of the Treaty of Paris was the ceding of Florida to the United States. This is a common misconception, as Florida was actually ceded back to Spain by Britain in a separate treaty, known as the Treaty of Paris of 1783, which ended the American Revolution. Therefore, ceding Florida to the United States was not a provision of the Treaty of Paris in 1783, and this is the answer to the original question asked by the student.