The domain of discourse for this problem is a group of three people who are working on a project. To make notation easier, the people are numbered 1, 2, 3. The predicate M (x, y) indicates whether x has sent an email to y, so M (2, 3) is read "Person 2 has sent an email to person 3." The table below shows the value of the predicate M(x, y) for each (x, y) pair. The truth value in row r and column y gives the truth value for M(x, y). M| 12 3 1 TTT 2 TFT 3 TTF Determine if the quantified statement is true or false. Justify your an- swer. (a) Væ Vy (x + y) → M(x, y)) (b) Væ 3y ¬M(x, y) (c) 3r Vy M(r, y)

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PROBLEM 3
The domain of discourse for this problem is a group of three people who are
working on a project. To make notation easier, the people are numbered 1, 2, 3.
The predicate M (x, y) indicates whether x has set an email to y, so M(2, 3) is
read "Person 2 has sent an email to person 3." The table below shows the value of
the predicate M(x, y) for each (x, y) pair. The truth value in row a and column
y gives the truth value for M(x, y).
1 2 3
1 TTT
2 TFT
T TF
M
3
Determine if the quantified statement is true or false. Justify your an-
swer.
(a) Væ Vy (a + y) → M(x, y))
(b) Væ ly ¬M(x, y)
(c) 3r Vy M(r, y)
Transcribed Image Text:PROBLEM 3 The domain of discourse for this problem is a group of three people who are working on a project. To make notation easier, the people are numbered 1, 2, 3. The predicate M (x, y) indicates whether x has set an email to y, so M(2, 3) is read "Person 2 has sent an email to person 3." The table below shows the value of the predicate M(x, y) for each (x, y) pair. The truth value in row a and column y gives the truth value for M(x, y). 1 2 3 1 TTT 2 TFT T TF M 3 Determine if the quantified statement is true or false. Justify your an- swer. (a) Væ Vy (a + y) → M(x, y)) (b) Væ ly ¬M(x, y) (c) 3r Vy M(r, y)
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