structure
definition
def or abbrev
OneStepDynamics
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formal statement (Lean)
22structure OneStepDynamics (α : Type) where
23 step : α → α
24 defect : α → ℝ
25 defect_nonincreasing : ∀ s, defect (step s) ≤ defect s
26
27/-- The 8-step evolution operator. -/