- Cannon Beach, Oregon (Wikipedia)
Cannon Beach is a city in Clatsop County, Oregon, United States. As of the 2020 census, Cannon Beach had a population of 1,489. It is a popular coastal Oregon tourist destination, famous for Haystack Rock, a 235 ft (72 m) sea stack that juts out along the coast. In 2013, National Geographic listed it as “one of the world’s 100 most beautiful places.”
- Mathematical induction (Wikipedia)
Mathematical induction is a method for proving that a statement P(n) is true for every natural number n, that is, that the infinitely many cases P(0), P(1), P(2), P(3),… all hold. This is done by first proving a simple case, then also showing that if we assume the claim is true for a given case, then the next case is also true.