- #1

- 14

- 0

Is there a reason why you cannot use the diagonal argument on the natural numbers, in the same way (to create a number

**not**on the list)

Eg: Long lists of numbers

123874234765234...

234923748273493...

234987239847234...

Take the diagonal (1,3,4,...) then, say, modulo 10 each number 1 becomes 2, 3 to a 4, 4 to a 5 etc

to get a new number (2,4,5,...) that can't be in the list? Where did I go wrong :)

Many Thanks