Theorem: Matroid.freeOn_flat_iff (Matroid/Flat.lean)

State before:
α : Type u_1
M : Matroid α
I F X Y F' F₀ F₁ F₂ P L H H₁ H₂ H' B C K : Set α
e f : α
E : Set α
⊢ (freeOn E).Flat F ↔ F ⊆ E
Tactic:
simp [← uniqueBaseOn_self, uniqueBaseOn_flat_iff Subset.rfl]
State after:
no goals