Past exam of the computer science course of the University of Oxford / 2015 / Logic and proof / 3 / a / B / Solution

The property of loving at least one person is the antecedent:An equivalent first-order sentence, useful for Skolemization, is $\forall x\forall y[L(x,y)\to L(x,\ell )]$. The person loved in the antecedent need not be Lucy; the conclusion concerns Lucy specifically.