∫ Утверждение Mathlib
instUniqueOfIsEmpty
Mathlib.Combinatorics.Digraph.Basic
URI: https://scilib.ai/kg/mathlib#Digraph.instUniqueOfIsEmpty
∫ Утверждение Mathlib
Mathlib.Combinatorics.Digraph.Basic
URI: https://scilib.ai/kg/mathlib#Digraph.instUniqueOfIsEmpty