Describe Frege’s theory of sense and reference. In particular:
• What is the reference of a singular term (or Frege’s ‘proper name’)? What is its sense? (Begin with reference.)
• Why did Frege introduce this distinction between reference and sense? What was his argument?
• What is a reference of a linguistic expression in general? What is its sense? What is a reference of a sentence in particular? What is its sense? (You may also want to say the reference and the sense of a (one-place) predicate.)