Mathematical Logic

123456789101112131415
Across
  1. 2. p∨q ≡q∨p
  2. 4. Let p be a proposition. The ... of p, denoted by ¬ p , is the opposite of the truth value of p.
  3. 5. R=A*A
  4. 7. Such a set with no elements is called the
  5. 10. nCr=n!/(n-r)!r!
  6. 12. laws (p ∨ q) ∨ r ≡ p ∨ (q ∨ r)
  7. 13. p∨q
  8. 14. set
  9. 15. A compound proposition that is always true, no matter whatthe truth values of the propositions that occur in it, is called a ...
Down
  1. 1. A compound proposition that is neither a
  2. 3. nPr=n!/(n-r)!
  3. 6. p∧q
  4. 8. nor a contradiction is called a ...
  5. 9. A compound proposition that is always false is called a ...
  6. 11. laws p∨(q ∧ r) ≡ (p∨q) ∧ (p∨r)