Define a Venn diagram and a predicate-logic expression for each of these claims: a. all students are persons b. some students are CS majors c. not all CS majors like video games
Solution:-
a) Assuming P(x) denotes 'x is person' then the statement All students are persons can be represented as where domain constitutes All students.
b) Assuming S(x) denotes ' x is a student' , C(x) denotes ' x has
taken CS major' then the statement Some students are CS majors can
be represented as
where domain constitutes students in the class.
c) Assuming C(x) denotes ' x has taken CS major ' , V(x) denotes '
x likes video games' then the statement Not all CS majors like
video games can be represented as
where domain constitutes students in the class.
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