Kenneth Rosen Edition 6th Exercise 1.3 Question 23 (Page No. 48)

Question

what is the approach of solving this question?

Q.Translate in two ways each of these statements into logical
expressions using predicates, quantifiers, and logical
connectives. First, let the domain consist of the students
in your class and second, let it consist of all people.
a) Someone in your class can speak Hindi.
b) Everyone in your class is friendly.
c) There is a person in your class who was not born in
California.
d) A student in your class has been in a movie.
e) No student in your class has taken a course in logic
programming.

Answer 1

First expression's domain is students 
in your class and 2nd expression's domain all people.

EDIT

CASE 1 : When Domain is "Students in your class"

Here we are talking everything with respect to students in our class i.e. any statement is for students of your class, eg - If I say everyone knows Hindi it means every student of our class knows Hindi.

CASE 2 : When Domain is "All people"

Here we are talking everything with respect to all person i.e. any statement is for every person and only for our class, eg If I say everyone knows Hindi it means every person knows Hindi its is not restricted to only our class.

  

Comments

@Shaik Masthan @prashant jha 1 ok , thanks

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Understood @Shaik Masthan , comment updated 

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no need to call me as sir, you can call me by name !