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def definition def or abbrev

step8

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formal statement (Lean)

  28def step8 {α : Type} (dyn : OneStepDynamics α) : α → α :=

proof body

Definition body.

  29  dyn.step^[8]
  30
  31/-- Iterating a one-step defect-nonincreasing map preserves defect monotonicity. -/

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depends on (8)

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