Frege's puzzles, named after the philosopher and logician Gottlob Frege, refer to a set of issues in philosophy of language concerning the nature of meaning and reference, particularly in relation to proper names and sentences that express identity. The puzzles explore how sentences involving proper names lead to questions about the difference between meaning (or sense) and reference. One of the most well-known aspects of Frege's puzzles is the example involving identity statements.
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