Question

Negation of “Paris in France and London is in England” is

• A. Paris is in England and London is in France
• B. Paris is not in France or London is not in England
• C. Paris is in England or London is in France
• D. None of these

Answer 1

Answer: (B)

Paris is not in France or London is not in England

Answer 2

Let p : Paris is in France, q : London is in England

∴ we have $p \land q$

Its negation is $\sim(p \land q) = \mspace{6mu}\sim p \vee \sim q$

i.e. Paris is not in France or London is not in England.