Question

R = { ( A , B ) | A ⊆ B }
1-R
is reflexive and transitive
2-s symmetric
3-R
is antisymmetric.
4-is reflexive but not transitive.

Answer 1

Answer:

Let R be the relation R

Step-by-step explanation:

Let R be the relation R = {(a, b)|a | b} on the set of positive integers. Find

a R−1

R−1 = {(b, a)|a | b} = {(a, b)|b | a}

b R

R = {(a, b)|a - |b}.