Fuzzy Logic Set Theory

Thinking about set theory, "Always, never, nearly, sometimes in and out" not that it has to make anything but fuzzy logic sense, but it has applications when thinking about security, and came up with the following:

Number Set Status Name Condition Status
1 Always In Always Out AIAO Considered, logic conflict
2 Always In Last In AILI Set
3 Always In Never Out AINO Set member
4 Always Out First out AOFO Considered rejected
19 Always Out Last Out AOLO Considered, logic conflict
5 First In Always In FIAI Set member
6 First In Always Out FIAO Considered, logic conflict
7 First in First out FIFO stack
8 First in Last out FILO stack
9 First in Never out FINO Set member
10 First Out Never In FONI Considered, rejected
11 Last In Always Out LIAO Closed, logic conflict
12 Last In First Out LIFO stack
13 Last In Last Out LILO stack
14 Last In Never Out LINO Set member
15 Last Out Always In LOAI Considered, logic conflict
16 Last Out Always Out LOAO Rejected, Closed Set
17 Never In First Out NIFO Considered, rejected
18 Never In Never Out NINO Unconsidered, unqualified

AIAO
AILI
AINO
AOFO
AOLO
FIAI
FIAO
FIFO
FILO
FINO
FONI
LIAO
LIFO
LILO
LINO
LOAI
LOAO
NIFO
NINO