rw [union_inter_distrib_right, hI.disjoint_loops.symm.inter_eq, union_empty]
α : Type u_1
β : Type u_2
M N : Matroid α
e f : α
B L L' I X Y Z F C K : Set α
h : M.LoopEquiv X Y
hI : M.Indep I
⊢ X ∩ I = (X ∪ M.cl ∅) ∩ I
no goals