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inductive definition def or abbrev

CellState

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formal statement (Lean)

  37inductive CellState
  38  | Zero    -- Boolean 0
  39  | One     -- Boolean 1
  40  | Signal  -- Propagating signal
  41  | Gate    -- AND/OR/NOT gate marker
  42  | Wire    -- Passive wire
  43  | Blank   -- Empty cell
  44  deriving DecidableEq, Repr
  45
  46/-- The CA tape is an infinite sequence of cells, but we work with finite windows -/

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