This is:
>>>>>Tell me, so that until I press the button, no person I don’t know will die in the world?

It is not so. You have a classic logic defect (and, in general, not just you).
In the implication A => B cannot simply take and turn A and B (!A =>!B). When the operanda is reversed, the implications necessarily change in places (!B =>!A), only so, if the original judgment is true, then the opposite is equally true.
Example of:
If Murzick has eggs (A), then (=>) Murzick is a cat, not a cat (B)".
If Murzick has no eggs, then Murzick is not a cat, but a cat, and if Murzick is not a cat, then Murzick has no eggs.