Question

Equivalent of it is not true that the test is today or the party is tonight

Answer 1

This is a logical statement, of the form

`\urcorner(p\lor q)`

where p is the statement "the test is today" and q is the statement "the party is tonight". The DeMorgan's Law indicates that:

`\urcorner(p\lor q)\equiv\urcorner p\wedge\urcorner q`

Therefore the equivalent statement is " the test is not today and the party is not tonight".