# math

posted by
**susan** on
.

Tell whether each of the following is true for all sets

A, B, or C. If false, give a counterexample.

c. A¿(BUC) = (A¿B) UC

d. (A-B)¿A=A

e. A-(B¿C) = (A-B) ¿ (A-C)

posted by
**susan** on
.

Tell whether each of the following is true for all sets

A, B, or C. If false, give a counterexample.

c. A¿(BUC) = (A¿B) UC

d. (A-B)¿A=A

e. A-(B¿C) = (A-B) ¿ (A-C)