Source: wikibot/mu-puzzle

= MU puzzle
{wiki=MU_puzzle}

The MU Puzzle is a fascinating problem that originates from the realm of formal systems and mathematical logic. It is often associated with the work of the mathematician and logician Douglas Hofstadter, particularly in his book "Gödel, Escher, Bach: An Eternal Golden Braid." The puzzle involves a set of strings formed from the letters 'M', 'U', and a specific set of production rules.