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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)").[1] Existential quantification is distinct from universal quantification ("for all"), which asserts that the property or relation holds for all members of the domain.[2][3] Some sources use the term existentialization to refer to existential quantification.[4]
B is bitcoin obviously
Ł (lowercase ł)
In Navajo, the letter Ł is used for a voiceless alveolar lateral fricative (/ɬ/), like the Welsh Ll.
See also
Đ - or dyet - A minuscule form of the letter, đ, is the symbol of the đồng, the currency of Vietnam, by a 1953 decree by Hồ Chí Minh.[16] The South Vietnamese đồng, on the other hand, was symbolized "Đ."
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QED-is an abbreviation for the Latin phrase "quod erat demonstrandum" ("that which was to be demonstrated"), a notation which is often placed at the end of a mathematical proof to indicate its completion.