Detailed explantion on why its wrong/correct. Discrete math Which of the followi

Question

Detailed explantion on why its wrong/correct. Discrete math

Which of the following statements is equivalent to the statement: "3n = 4 only if 0 is even"? A. "If 3n notequalto 4, then 0 is odd." B "If 0 is even, then 3n = 4." C. "If 3n = 4, then 0 is odd." D. "3n = 4 and 0 is odd." E. "3n notequalto 4 or 0 is even." Which of the following propositions is false if the domain is all real numbers? A. Forall x exist y (x = y^2) B. Forall (x notequalto 0 rightarrow exist y (xy = 1)) C. Forall x exist y (x^2 = y) D. Forall x Forall y exist z (x + y/7 = z) E. All of the above are true.

Explanation / Answer

i)A"only if"B means If not A then not B. So the answer should be A.

ii) A is false as if x = -1 then there is no such y.

Related Questions

Navigate

• Browse (All)
• Browse D
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.