Context: I'm in undergrad discrete math, this is a textbook question from Discrete Mathematics and its Applications 7th edition
Here's the question:
Let S(x) be the predicate "x is a student," F(x) the predicate "x is a faculty member," and A(x, y) the predicate "x has asked y a question," where the domain consists of all people associated with your school. Use quantifiers to express the following statement.
Some student has asked every faculty member a question.
This is what the textbook says is the correct answer:
$$\forall y (F(y) \to \exists x (S(x) \lor A(x, y)))$$
I mostly understand how this is correct, but shouldn't it be $\land$ instead of $\lor$ ?
Note that bounded quantifiers are translated as follows:
"There exists some student $x$ such that $P(x)$" is translated as $\exists x (S(x) \land P(x))$.
"For all faculty members $y$, $P(y)$" is translated as $\forall y (F(y) \to P(y))$.
In my view, the obvious meaning of this sentence is that there exists a student $x$ such that for all faculty members $y$, $x$ has asked $y$ a question. That is,
$$\exists x (S(x) \land \forall y (F(y) \to A(x, y))$$
The alternate interpretation (and in my view the less natural interpretation of the English phrase) is that for all faculty members $y$, there exists a student $x$ such that $x$ has asked $y$ a question. This is translated as
$$\forall y (F(y) \to \exists x (S(x) \land A(x, y))$$
So as you say, it should be $\land$ and not $\lor$.