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def definition def or abbrev

RSActual

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formal statement (Lean)

  61def RSActual (x : ℝ) : Prop := RSNecessary x

proof body

Definition body.

  62
  63/-- **RSImpossible**: x is impossible iff x ≤ 0 (violates ledger positivity). -/

used by (7)

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depends on (6)

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