Question

If $X\varphi$ Y means X is the wife of Y, X $\$$ Y means X is the son of Y and X $\psi$ Y means X is the sister of Y, which of the following would mean that A is the daughter of B?

• A. $A\$C\psi D\varphi B$
• B. $A\varphi C\$D\psi B$
• C. $A\psi C\varphi D\$B$
• D. $A\psi C\$D\varphi B$

Answer 1

The correct option is D $A\psi C\$D\varphi B$

In option $D$, we can see that

$A\psi C\Rightarrow$ A is sister of C

And $C\$D$ implies C is the son of D.

$D\varphi B$ implies D is the wife of B.

Therefore, A is daughter of D and B.