If R1 and R2 are binary relations from set A to set B, then the equality ______ holds.
Posted: Thu Jul 14, 2022 9:04 am
a) (Rc)c = Rc
b) (A x B)c = Φ
c) (R1 U R2)c = R1c ∪ R2c
d) (R1 U R2)c = R1c ∩ R2c
b) (A x B)c = Φ
c) (R1 U R2)c = R1c ∪ R2c
d) (R1 U R2)c = R1c ∩ R2c