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def definition def or abbrev

past

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formal statement (Lean)

 133def past (states : ℕ → LedgerSnapshot) (now : ℕ) : Set LedgerSnapshot :=

proof body

Definition body.

 134  { s | ∃ n, n < now ∧ states n = s }
 135
 136/-- The future is the set of uncommitted entries (later ticks). -/

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