- FondsMordell - Papers of Louis Joel Mordell
- Series1-40 - Letters
- File6 - Erdos
- File6.2 - Papers
- 3 more...
- Item6.2.4 - Proof of a mathematical theorem
- Item6.2.5 - A Remarkable peculiarity of the number 30
- Item6.2.6 - A mathematical proof
- Item6.2.7 - Typed and manuscript notes on primes
- Item6.2.8 - Sequence of integers
- Item6.2.9 - Proof of a theorem
- Item6.2.10 - Proof of a theorem
- Item6.2.11 - 'On the density of the sum of two sequences' by Paul Erdos
- Item6.2.12 - On the difference of consecutive primes
- 5 more...