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def definition def or abbrev

mk'

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formal statement (Lean)

  38def mk' (lo hi : ℚ) (h : lo ≤ hi := by decide) : Interval where

proof body

Definition body.

  39  lo := lo
  40  hi := hi
  41  valid := h
  42
  43/-! ## Interval Arithmetic Operations -/
  44
  45/-- Addition of intervals: [a,b] + [c,d] = [a+c, b+d] -/

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depends on (7)

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