ℾ

ℾ (Called "Gath") is a post ƒ number, lets say we have this function called the "Gatin' function":

Γ(x) = x ∗ ʃₓ

So,

- Γ(1) = 1 ∗ ʃ ₁ =  ʃ

- Γ(2) = 2 ∗ ʃ ₂ =  ɼ ₂

- Γ(3) = 3 ∗ ʃ ₃ =  ɭ ₃

- Γ =   ∗ ʃ  = ʃ(₂∗

ℾ is equal to:
ℾ = Γ(ƒ)

= ƒ ∗ ʃ ƒ

= ƒ ∗ ƒ₂

= ƒ2₂