pith. machine review for the scientific record. sign in
def definition def or abbrev

subBlockSum8

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)

  71def subBlockSum8 (s : Stream) (j : Nat) : Nat :=

proof body

Definition body.

  72  ∑ i : Fin 8, (if s (j * 8 + i.val) then 1 else 0)
  73
  74/-- Aligned block sum over `k` copies of the 8‑tick window (so instrument length `T=8k`). -/

used by (7)

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

depends on (13)

Lean names referenced from this declaration's body.