Reason that we cannot use words like not or untrue is

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3. Write the fully simplified negation of 3 < x ≤ 4.
4. Is the conditional statement ”If a human being has 7 heads, then they have 11 arms” true or false? Explain.
5. Rephrase in standard ”if.. then” form: ”We are buying a new TV only if the old TV breaks down.” The rephrasing statement would be “If we are buying a new TV, then the old TV must have broken down”. 6. Rephrase in standard ”if.. then” form: ”In the United States, a good credit score is necessary for obtaining a loan.”

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