namespace System
{
    [RequiresPreviewFeatures("Generic Math is in preview.", Url = "https://aka.ms/dotnet-warnings/generic-math-preview")]
    public interface IEqualityOperators<TSelf, TOther> : IEquatable<TOther>
        where TSelf, IEqualityOperators<TSelf, TOther>!
    {
        static bool operator !=(TSelf left, TOther right);
    }
}