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Π

From Wiktionary, the free dictionary
See also: ϖ, П [U+041F CYRILLIC CAPITAL LETTER PE], [U+220F N-ARY PRODUCT], [U+3107 BOPOMOFO LETTER M], , , and Appendix:Variations of "p"

Π U+03A0, Π
GREEK CAPITAL LETTER PI
Ο
[U+039F]
Greek and Coptic Ρ
[U+03A1]

Translingual

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Symbol

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Π

  1. English Wikipedia has an article on:
    Wikipedia
    (mathematics) Product over a set of like terms:
  2. (mathematics, logic, computer science) A class (in some hierarchy of formulae, like the arithmetical hierarchy or polynomial hierarchy) of those formulae whose outermost quantifiers are universal quantifiers.

Usage notes

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  • (mathematics): Though there exists a distinct code point () for the purpose of the mathematical product, the upper case pi here continues to be used for convenience.

See also

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Ancient Greek

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Etymology

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From Phoenician 𐤐 (p, ).

Letter

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Π (P) (uppercase, lowercase π)

  1. The letter pi (πεῖ), the 16th letter of the ancient Greek alphabet.

Derived terms

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See also

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Symbol

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𐅃 (V)

  1. A digit 5 in the decimal acrophonic numeral system that predated the gematria system. An abbreviation of πέντε (pénte, five). Equivalent to the Roman digit V.

Usage notes

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Unlike the other basic acrophonic units – Ι 1, Δ 10, Η 100, Χ 1000 and Μ 10,000 – 𐅃 5 has been assigned a separate Unicode character.

Derived terms

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Greek

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Letter

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Π (P) (uppercase, lowercase π)

  1. The uppercase letter pi (πι), the 16th letter of the modern Greek alphabet.

See also

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