in constructing the numberMin the Cantor diagonalization argument, we declare that the first digit to the right of the decimal point ofM will be 7, and then the other digits are selected as before (if the second digit of the second real number has a 2, we make the second digit ofMa 4; otherwise, we make the second digit a 2, and so on). Show by example that the numberM may, in fact, be a real number on our list.