contestada

Read the proposition and the implication shown below. "If the lights are off, there is no one inside." Which statement is a contrapositive to the proposition and logically equivalent to it?

Respuesta :

pmayl
The contrapositive switches the hypothesis and the conclusion and negates both in this form:
Statement: If A, then B
Contrapositive: If not B, then not A. 

In this case, the statement is: 
 "If the lights are off, there is no one inside."
Contrapositive:
If there is someone inside, the lights are on. 

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