proposition: Lemma inclusion_seq_eqv_l A (r : relation A) dom : ⦗dom⦘ ⨾ r ⊆ r.
proof: Proof. autounfold with unfolderDb; intuition; desf; eauto. Qed.
imports: Program.Basics Arith micromega.Lia Permutation List Setoid HahnBase HahnList HahnRelationsBasic HahnSets