I live in a tiny rural community on the London/Kent border. The social life revolves around the local pub which draws its loyal customers from a wider area. In 2015 a couple of locals, Lester [more…]
Euclid’s Elements, Book IX, Proposition 20. Theorem : Prime numbers are more than any assigned multitude of prime numbers. That is, there are infinitely many primes. Proof : Suppose that there are primes : Let [more…]