Squealer+was+able+to+convince+them+that+this+was+not+the+case

By moving into the house, away from the rest of the animals, the pigs can separate themselves and discuss their plans privately. This way, they can have more power and decide things without consulting the other animals. The animals aren't equal anymore because now the pigs are living more comfortably than the rest of the farm. Squealer explains this by manipulating the animals into thinking that it is necessary for the pigs to live in the house. Also, Napoleon is referred to as "the Leader." Because Napoleon is referred to as "the Leader," he is set apart from everyone else and Squealer implies that he should be treated better than the others.

(Jennifer Suh; Eblock)