Question: Express the following statements using quantifiers Everyone has at least one friend. Some friendships are mutual. Every friend of Jenny is also a friend of

Express the following statements using quantifiers
Everyone has at least one friend.
Some friendships are mutual.
Every friend of Jenny is also a friend of Ken.
Options:( in order of a, b, c)
Let
P
(
x
,
y
)
be
x
has
y
as a friend" (and assume friendship can be non-mutual:
x
can be friends with
y
without
y
being friends with
x
) and let the domain be everyone in the world.
Express the following statements using quantifiers
Everyone has at least one friend.
Some friendships are mutual.
Every friend of Jenny is also a friend of Ken.
Options:( in order of a, b, c)
x
!
y
P
(
x
,
y
)
,
x
1
y
1
(
P
(
x
1
,
y
1
)
P
(
y
1
,
x
1
)
,
y
(
P
(
J
e
n
n
y
,
y
)
P
(
K
e
n
,
y
)
)
.
y
x
P
(
x
,
y
)
,
x
1
y
1
(
P
(
x
1
,
y
1
)
P
(
y
1
,
x
1
)
)
,
y
(
P
(
J
e
n
n
y
,
y
)
->
P
(
K
e
n
,
y
)
)
.
x
!
y
P
(
x
,
y
)
,
x
y
(
P
(
x
,
y
)
->
P
(
y
,
x
)
)
,
y
(
P
(
J
e
n
n
y
,
y
)
->
P
(
K
e
n
,
y
)
)
x
y
P
(
x
,
y
)
,
x
1
y
1
(
P
(
x
1
,
y
1
)
P
(
y
1
,
x
1
)
)
,
y
(
P
(
J
e
n
n
y
,
y
)
->
P
(
K
e
n
,
y
)
)

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!