[spam][crazy][fiction][random] Non-Canon MCBoss Spinoffs

[Undescribed Horrific Abuse, One Victim & Survivor of Many]

define inverse of unary function

if f is an unary function
then inverse(f) if the function g such that f(g(x)) = x and g(f(x)) =
x for all x

you could use this test if searching unary operators for inverses