First slide

Introduction to mathematical reasoning

Question

Negation of 'Paris is in France and London is in England' is

Moderate

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

Solution

Let p : Paris is in France, q : London is in England
The given statement is p $\land$ q.
Its negation is $~ (p \land q) =\sim p \lor ~ q$ .
So, the required statement is "Paris is not in France or London is not in England".

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