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