Answer: The single commandment that 'All animals are equal, but some are more equal than others' replaced the seven commandments in Animal Farm.
Explanation: In the end of the book, the seven commandments were entirely replaced by the single commandment, which said 'All animals are equal, but some are more equal than others'. The pigs through this commandment believe that they can abandon the seven commandments without any reprisals. The new commandment represents their self-serving creed. It justifies atrocities against other animals, and declares that the pigs can wear clothes and drink alcohol.