### Abstract

In a puzzle published by Randall Munroe, perfect logicians forbidden from communicating are stranded on an island, and may only leave once they have figured out their own eye color. We present a method of modeling the behavior of perfect logicians and formalize a solution of the puzzle.

### License

BSD License

### Topics

- Logic/General logic/Logics of knowledge and belief

### Session Blue_Eyes

- Blue_Eyes

## Cite

×

Blue_Eyes-AFP

    @article{Blue_Eyes-AFP,
      author  = {Maya Kądziołka},
      title   = {Solution to the xkcd Blue Eyes puzzle},
      journal = {Archive of Formal Proofs},
      month   = {January},
      year    = {2021},
      note    = {\url{https://isa-afp.org/entries/Blue_Eyes.html},
                 Formal proof development},
      ISSN    = {2150-914x},
    }

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