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structure definition def or abbrev

TuringMachine

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formal statement (Lean)

  46structure TuringMachine where
  47  /-- Set of states -/
  48  numStates : ℕ
  49  /-- Tape alphabet size -/
  50  alphabetSize : ℕ
  51  /-- Nonempty states -/
  52  states_nonempty : numStates > 0
  53  /-- Nonempty alphabet -/
  54  alphabet_nonempty : alphabetSize > 0
  55
  56/-- A TM transition: (state, symbol) → (new_state, new_symbol, direction). -/

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