Which one of the following must be false of the summer program?

timothy November 16, 2017

QUESTION 17

The video explanation is wrong because both A and E has Z and we know from the contrapositive of rule 3 that z-> not P -> not S There fore if we use the same rule for answer E then the same rule should apply for answer choice A.

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Mehran November 29, 2017

@timothy this video has been updated. Please let us know if you have any other questions.

Tony June 9, 2019

Is there another way to arrive at the answer without referring to the previous questions, assuming I wasn't able to answer the previous questions correctly?