Question

Let A, B and C be three sets. Then prove or disprove the following statements:

(a) If A × C = B × C then A = B.

(b) A × (B − C) = (A × B) − (A × C).​

Answer 1

Answer:

(a) is correct

(b) is also correct

Answer 2

1)AC=BC

2)AB-AC=AB-AC