ex7-8.txt

7.8

mofaph@gmail.com

A.

a) REF(main.1) --> DEF(main.1)
b) REF(main.2) --> DEF(main.2)

B.

a) REF(x.1) --> DEF(x.UNKNOWN)
b) REF(x.2) --> DEF(x.UNKNOWN)

C.

a) REF(x.1) --> DEF(x.ERROR)
b) REF(x.2) --> DEF(x.ERROR)