### Quick description

### Prerequisites

### Example 1

Given a bijection from the naturals to the reals, write the element mapped to by n as Rn and the dth digit after the decimal place as Rn(d) Then let C(d) = 6 if Rd(d) != 6 , 7 otherwise. Then C(d) is no equal to any Rn therefore we have a contradiction.

5 years 3 weeksago5 years 11 weeksago5 years 12 weeksago5 years 42 weeksago6 years 10 weeksago