Here are 3 examples that you can use for resignation letter as Assistant Professor -. Resignation letters should use the formal greeting: "Dear".The first sentence in the letter should state that you are resigning and when. In the opening paragraph, clearly state that you are resigning from your position. The address section should begin with your name and contact information. Next, you should write the date you plan to resign. The rank does not carry tenure. Extension 7864 or filling out a form on the Digital Media Services webpage. Spiro Theodore Agnew was the 39th vice president of the United States, serving from 1969 until his resignation in 1973. An official says that Canadian Prime Minister Trudeau is set to resign as Liberal Party leader, effectively ending nearly a decade in power.