English
The cone generated by the convex hull of s is the least cone containing s; equivalently, convext hull cone is least.
Русский
Конус, порождаемый выпуклой оболочкой s, является наименьшим конусом, содержащим s.
LaTeX
$$IsLeast { t : ConvexCone 𝕜 M | s ⊆ t } ((convex_convexHull 𝕜 s).toCone _)$$
Lean4
theorem convexHull_toCone_isLeast (s : Set M) :
IsLeast {t : ConvexCone 𝕜 M | s ⊆ t} ((convex_convexHull 𝕜 s).toCone _) :=
by
convert (convex_convexHull 𝕜 s).toCone_isLeast using 1
ext t
exact ⟨fun h => convexHull_min h t.convex, (subset_convexHull 𝕜 s).trans⟩