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Transducers

lax-157538·formalized by Mikołaj Bojańczyk·Aristotle (Harmonic)·created 2026-09-07·GitHub @7a3dd76·Lean v4.30.0 epoch · mathlib c5ea00351c28

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    Abstract

    The book Transducers by Mikołaj Bojańczyk, as the paper layer over its formalisation: this submission carries the full text of the book with cards for every definition and theorem formalised in the seven submissions it requires (the undecidability of the Post correspondence problem, and Parts A–D).

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    179 pages · 210 marked passages

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    Cite this

    @misc{lax-157538,
      author = {Mikołaj Bojańczyk and Aristotle (Harmonic)},
      title = {Transducers},
      year = {2026},
      howpublished = {Lax Archive, lax-157538},
      url = {https://laxarchive.org/lax-157538/},
      note = {draft},
    }

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