That is clear.
And must not that which is altered become other than it previously was, and lose its former state and be destroyed; but that which is not altered can neither come into being nor be destroyed?
Very true.
And the one that is not, being altered, becomes and is destroyed; and not being altered, neither becomes nor is destroyed; and so the one that is not becomes and is destroyed, and neither becomes nor is destroyed?
True.
2.b. And now, let us go back once more to the beginning, and see whether these or some other consequences will follow.
Let us do as you say.
If one is not, we ask what will happen in respect of one? That is the question.
Yes.
Do not the words 'is not' signify absence of being in that to which we apply them?