no goals
ι : Sort ?u.38083
𝕜 : Type u_2
E : Type u_1
inst✝² : OrderedSemiring 𝕜
inst✝¹ : AddCommMonoid E
inst✝ : Module 𝕜 E
s t✝ s₁✝ s₂✝ t₁ t₂ u : Set E
x y : E
s₁ s₂ t : Set E
⊢ convexJoin 𝕜 (s₁ ∪ s₂) t = convexJoin 𝕜 s₁ t ∪ convexJoin 𝕜 s₂ t
simp_rw [convexJoin, mem_union, iUnion_or, iUnion_union_distrib]