If you did, you will always have done it, but you will always have used the winning number and will only receive half the winnings. You couldn’t use a draw with no winners, because you will have never won in that case.
You always will have had won, you aren’t taking money away from anyone but yourself, and you only find out the winning number after you already won; so it is legal.
The morality of using a time machine to win the lottery is debatable.
If you did, you will always have done it, but you will always have used the winning number and will only receive half the winnings. You couldn’t use a draw with no winners, because you will have never won in that case.
is it illegal to cheat two lotteries with time travel?
You always will have had won, you aren’t taking money away from anyone but yourself, and you only find out the winning number after you already won; so it is legal.
The morality of using a time machine to win the lottery is debatable.