Which one of the following CANNOT be true?

Devin on February 25 at 12:27AM

Dont just reverse

Is it true that V & Z can be with S is because it does not violate the 4th rule of if v(I) then z(s) because you dont just reverse? Or am I missing something?

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Emil on March 1 at 02:32AM

That is correct, the fourth rule doesn't ban V and Z being both in S. However,

Emil on March 1 at 02:33AM

Sorry, ignore that hanging however!