- Existential quantification (Wikipedia)
In predicate logic, an existential quantification is a type of quantifier, a logical constant which is interpreted as “there exists”, “there is at least one”, or “for some”. It is usually denoted by the logical operator symbol ∃, which, when used together with a predicate variable, is called an existential quantifier ("∃x" or “∃(x)” or “(∃x)”). Existential quantification is distinct from universal quantification (“for all”), which asserts that the property or relation holds for all members of the domain. Some sources use the term existentialization to refer to existential quantification.
- Longview, Washington (Wikipedia)
Longview is a city in Cowlitz County, Washington, United States. It is the principal city of the Longview, Washington Metropolitan Statistical Area, which encompasses all of Cowlitz County. Longview’s population was 37,818 at the time of the 2020 census, making it the most populous city in Cowlitz County. The city is located in southwestern Washington, at the junction of the Cowlitz and Columbia rivers. Longview shares a border with Kelso to the east, which is the county seat.
- Longview (Wikivoyage)
Longview, the City of Trees, is a city in Southwest Washington State along the Columbia River, and across the Cowlitz River from Kelso. It was established in 1923 by R. A. Long, who intended it to become the “Chicago of the West”.