Christian Economist: "If I enjoy use of property for which I paid for a period of time, then I am entitled to a rent for that sacrifice (Rent)."
Anarchist: Well you could enjoy the use of a slave for whom you have paid, for a period of time, but how does this title become legitimate because you assert that you have paid for it?
What does property law have to say when a proprietor has purchased an erroneous title, and someone with a better title comes along?