scala> val l = 1 to 10
l: scala.collection.immutable.Range.Inclusive = Range(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)

scala> l.forall(x => x > 0)
res0: Boolean = true

scala> l.forall(x => x > 1)
res1: Boolean = false

scala> l.exists(x => x < 1)
res2: Boolean = false

scala> l.exists(x => x < 2)
res3: Boolean = true