Explain the essential elements for eviction (Article 1548) Essential elements are:

(1) The vendee is deprived in whole or in part of the thing purchased;

(2) He is so deprived by virtue of a final judgment (Art. 1557.);

(3) The judgment is based on a right prior to the sale or an act imputable to the vendor;

(4) The vendor was summoned in the suit for eviction at the instance of the vendee (Art. 1558.);

and

(5) There is no waiver on the part of the vendee.