pith. machine review for the scientific record. sign in
theorem proved term proof

runningMax_mono

show as:
view Lean formalization →

No prose has been written for this declaration yet. The Lean source and graph data below render without it.

generate prose now

formal statement (Lean)

  45theorem runningMax_mono (a : ℕ → ℝ) : Monotone (runningMax a) := by

proof body

Term-mode proof.

  46  intro m n hmn
  47  unfold runningMax
  48  apply Finset.sup'_le
  49  intro k hk
  50  exact Finset.le_sup' a (Finset.range_mono (by omega) hk)
  51
  52/-- The running maximum of a divergent sequence is divergent. -/

used by (2)

From the project-wide theorem graph. These declarations reference this one in their body.

depends on (10)

Lean names referenced from this declaration's body.