#[deprecated(since="Coq 8.16", note="Use mono1W_in instead.")]
Notation mono2W_in := mono1W_in.

Lemma homoLR_in : {in aD &, {homo f : x y / aR x y >-> rR x y}} -> {in aD & rD, forall x y, aR x (g y) -> rR (f x) y}.