Check if a type implements a generic interface without considering the generic type arguments

As far as I know, the only way to do this is to get all interfaces and see if the generic definition matches the required interface type.

bool result1 = type.GetInterfaces()
    .Where(i => i.IsGenericType)
    .Select(i => i.GetGenericTypeDefinition())
    .Contains(typeof(MyInterface<,>));

EDIT: As Jon points out in the comments, you could also do:

bool result1 = type.GetInterfaces()
    .Where(i => i.IsGenericType)
    .Any(i => i.GetGenericTypeDefinition() == typeof(MyInterface<,>));