I don't get it. The last two examples in your post compare the exact same sets, yet the result of the operator is TRUE in the first example, and FALSE in the second? Or is this a joke that's gone over my head?
I don't get it. The last two examples in your post compare the exact same sets, yet the result of the operator is TRUE in the first example, and FALSE in the second? Or is this a joke that's gone over my head?