- Ernst Friedrich Ferdinand Zermelo (/zɜːrˈmɛloʊ/, German: [tsɛɐ̯ˈmeːlo]; 27 July 1871 – 21 May 1953) was a German logician and mathematician, whose work has major implications for the foundations of mathematics. He is known for his role in developing Zermelo–Fraenkel axiomatic set theory and his proof of the well-ordering theorem. Furthermore, his 1929 work on ranking chess players is the first description of a model for pairwise comparison that continues to have a profound impact on various applied fields utilizing this method.
- Proslogion (Wikipedia)
The Proslogion (Latin: Proslogium, lit. ‘Discourse’) is a prayer (or meditation), written by the medieval cleric Saint Anselm of Canterbury in 1077–1078, serving to reflect on the attributes of God in order to explain how God can possess seemingly contradictory qualities. This meditation is considered to be the first-known philosophical formulation that sets out the ontological argument for the existence of God.