Turned e

Ǝ ǝ 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 majuscule E.
It is not to be confused with, the existential quantifier used in logic, or with , which is used as a phonetic symbol for the mid [central vowel] and as a letter in Latin-based orthographies, such as Azerbaijani and the General [Alphabet of Cameroon Languages].
In MacOS with the U.S. Extended keyboard, the letters Ǝ ǝ are made with followed by E e respectively.