Theorem: Matroid.Skew.diff_loops_disjoint_left (Matroid/Modular.lean)

State before:
ι : Type u_1
α : Type u_2
M : Matroid α
B I J X X' Y Y' F : Set α
Xs Ys Js Is : ι → Set α
i j : ι
e f : α
h : M.Skew X Y
⊢ Disjoint (X \ M.cl ∅) Y
Tactic:
rw [disjoint_iff_inter_eq_empty, ← inter_diff_right_comm, diff_eq_empty]
State after:
ι : Type u_1
α : Type u_2
M : Matroid α
B I J X X' Y Y' F : Set α
Xs Ys Js Is : ι → Set α
i j : ι
e f : α
h : M.Skew X Y
⊢ X ∩ Y ⊆ M.cl ∅

State before:
ι : Type u_1
α : Type u_2
M : Matroid α
B I J X X' Y Y' F : Set α
Xs Ys Js Is : ι → Set α
i j : ι
e f : α
h : M.Skew X Y
⊢ X ∩ Y ⊆ M.cl ∅
Tactic:
exact h.inter_subset_loops
State after:
no goals