Write the negation of each statement. (a) Everyone likes Robert. (b) Some students work part-time. (c) No square matrices are triangular. (d) ∃ x in B  f (x) > k. (e) If x > 5, then f (x) 7. (f ) If...

Write the negation of each statement.

(a) Everyone likes Robert.

(b) Some students work part-time.

(c) No square matrices are triangular.

(d) ∃ x in B
 f (x) > k.

(e) If x > 5, then f (x) <> 7.

(f ) If x is in A, then ∃ y in B
 f (x) <>