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Ǝ ǝ. Ǝ ǝ ( turned E or reversed E) is an additional letter of the Latin alphabet used in African languages using the Pan-Nigerian alphabet. The minuscule is based on a rotated e and the capital form majuscule Ǝ, based on a reversed (mirrored) majuscule E. It is not to be confused with U+2203 ∃ THERE EXISTS, the existential quantifier ...
Ə, or ə, also called schwa, is an additional letter of the Latin alphabet. In the International Phonetic Alphabet (IPA), minuscule ə is used to represent the mid central vowel or a schwa. It was invented by Johann Andreas Schmeller for the reduced vowel at the end of some German words and first used in his 1820s works on the Bavarian dialects .
The mid central vowel (also known as schwa) is a type of vowel sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is ə , a rotated lowercase letter e, which is called a "schwa". While the Handbook of the International Phonetic Association does not define the roundedness of [ə ...
In the Pinyin romanization of Standard Mandarin Chinese, ê represents /ɛ/. It corresponds to Zhuyin ㄝ. The circumflex occurs only if ê is the only vowel in a syllable: ề /ɛ̂/ ( 诶; 誒; "eh!"). Without the circumflex, e as the only vowel represents /ɤ/: è /ɤ̂/ ( 饿; 餓; "hungry"). Elsewhere, /ɛ/ is written as a (after i or ü ...
A normal turned Y, , has been accepted for Unicode 16. Additional small cap forms are found in the literature (e.g. turned ᴀ ʟ ᴜ), but are not supported as of Unicode 15. Other rotated letters include the digraphs ᴂ and ᴔ. The "rotated" capital Q in Unicode is only turned 90 degrees: ℺.
The logical symbol ∀ has the same shape as a sans-serif capital turned A. It is used to represent universal quantification in predicate logic , where it is typically read as "for all". It was first used in this way by Gerhard Gentzen in 1935, by analogy with Giuseppe Peano 's turned E notation for existential quantification and the later use ...
Glossary of mathematical symbols. A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various ...
The International Phonetic Alphabet (IPA) possesses a variety of obsolete and nonstandard symbols. Throughout the history of the IPA, characters representing phonetic values have been modified or completely replaced. An example is ɷ for standard [ʊ]. Several symbols indicating secondary articulation have been dropped altogether, with the idea ...