Give the inverse of each of the following relations, and say whether the relation is symmetric or not. The size of x is different from the size of y 27. Let x and y stand for horses. The period x is all within the period y . Say, if possible, whether this shows that R is symmetric or not symmetric.
R y mean The tops of x and y are both covered with snow .
The relation R is symmetric. Therefore, R is antisymmetric. R y mean x is not less powerful than y . Therefore, R is not antisymmetric. Let x and y be shirts for sale in a shop.