Possible Clues:

• So one may assume that you get behind time with the mail
• Claim place with university after the usual time
• Assume as axiom
• Suggest job with university behind schedule
• Mathematician's assumption
• Lay down that with the letters you may not be in time
• Working up to steal claim
• Suppose the mail is delayed after you are reported?
• That which is assumed
• Put forward for job, with university behind schedule