If Ty and Zack appear together in a photograph, then which one of the following must be true?

Amanda on November 11, 2017

Please explain thanks

Please explain thanks

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Mehran on November 12, 2017

Hi @sharpen7, thanks for your post. Please watch the video explanation for this game, which should answer your question. If it does not, please feel free to post a more specific follow up! Thanks.

Nishant on May 27, 2020

Hi, how do we know that the last rule in this question is not a compound conditional like the following: W -> not T or not R, which would have the following CP: T & R -> not W? I watched the video and saw how it was supposed to be diagrammed, but I am just wondering how the wording prevents us from diagramming it like I did?

Nishant on June 1, 2020

Hi, I just wanted to follow up on this question. Thanks!