Turned A (capital: Ɐ, lowercase: ɐ, math symbol ∀) is a letter and symbol based upon the letter A.
It was used in the 18th century by Edward Lhuyd and William Pryce as a phonetic character for the Cornish language. In their books, both Ɐ and ɐ have been used. [3] It was used in the 19th century by Charles Sanders Peirce as a logical symbol for 'un-American' ("unamerican"). [4]
According to the principle of acrophony, the letter A originated from the Proto-Sinatic alphabet as a symbol representing the head of an ox or cow ( aleph), its orientation and original meaning having been lost over time. The turned A symbol restores the letter to a more easily recognizable logographic representation of an ox's head. [5]
U+1D44 ᵄ MODIFIER LETTER SMALL TURNED A is used in the Uralic Phonetic Alphabet. [6]
Preview | Ɐ | ɐ | ∀ | |||
---|---|---|---|---|---|---|
Unicode name | LATIN CAPITAL LETTER TURNED A | LATIN SMALL LETTER TURNED A | FOR ALL | |||
Encodings | decimal | hex | dec | hex | dec | hex |
Unicode | 11375 | U+2C6F | 592 | U+0250 | 8704 | U+2200 |
UTF-8 | 226 177 175 | E2 B1 AF | 201 144 | C9 90 | 226 136 128 | E2 88 80 |
Numeric character reference | Ɐ |
Ɐ |
ɐ |
ɐ |
∀ |
∀ |
Named character reference | ∀, ∀ | |||||
Symbol font | 34 | 22 | ||||
TeX | \forall |