According to Kearns (2011), I know that "the ten apples are bruised" can be interpreted as "‘The ten apples are bruised’ is true if and only if |A ∩ B| = 10."
But how about this sentence "Neither artist is Bulgarian."? Should it be interpreted as "'Neither artist is Bulgarian' is true if and only if |A ∩ B| = 0"? Also, should "Both avenues are broad." be "‘Both avenues are broad’ is true if and only if |A ∩ B| = 2"?