LSAT Practice Test 2025 - Free LSAT Practice Questions and Study Guide

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Question: 1 / 575

Which term in Formal Logic indicates "If ~Y --> Z" when considering "All except Z are Y"?

An event likely to occur

Conclusion

Negation

Necessity

In Formal Logic, the term that indicates "If ~Y --> Z" when considering "All except Z are Y" is "Necessity." This is because the statement "All except Z are Y" implies that Z is a necessary condition for Y. Therefore, in the logical statement "If ~Y --> Z," the presence of Z is necessary for the absence of Y. This aligns with the concept of "Necessity" in Formal Logic.

Option A, "An event likely to occur," does not accurately represent the relationship between the given statements. Option B, "Conclusion," is not the appropriate term to describe the logical connection between the conditions provided. Option C, "Negation," does not capture the idea of necessity in this logical context.

Therefore, the correct answer is option D, "Necessity."

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