11
Subgraph Properties
•
Example 2:
•
Q = R(x,y),R(y,a),R(b,x)
•
H=Q
¹
=R(x,y),R(y,z),R(z,x),x
¹
y,y
¹
a,a
¹
x,x
¹
b, b
¹
x
a
b
