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•
/
=
P
={[
]
,
[
]}
v
x
=
v
y
,
P
∼
X
x
y
, and
is of the type
In the particular case
{
v
x
,v
y
}={
ʱ, ˉ
}
,
P
is of the type
{x}
{y}
1
2
3
4
X
that is,
P
∼
is the classical or crisp subset
[
x
]
of
X
, and
P
is a rigid or binary predicate
in
X
.
Let us show some examples.
Example 1.1.7
With
P
=
around five
, and
P
as shown in the example [2 in 1.2],
the function
⊧
⊨
,
∈[
,
]∪[
,
]
0
if
x
0
4
6
10
μ
P
(
)
=
x
−
4
,
if
x
∈[
4
,
5
]
x
⊩
6
−
x
if
x
∈[
5
,
6
]
,
whose graphics is
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