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

arithmeticCoding

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)

 191def arithmeticCoding : String :=

proof body

Definition body.

 192  "Near-optimal, L → H for long messages"
 193
 194/-- Lempel-Ziv compression (LZ77, LZ78, LZW):
 195    - Dictionary-based
 196    - Adaptive (learns patterns)
 197    - Achieves entropy in limit
 198    - Used in ZIP, PNG, GIF -/

depends on (8)

Lean names referenced from this declaration's body.