(Solved): Which of the following is/are true about sets and tuples? Select one or more: Select one or more: \ ...

Which of the following is/are true about sets and tuples? Select one or more: Select one or more: \( \{(\mathrm{s}, \mathrm{t}),(\mathrm{y}, \mathrm{z})\} \) and \( \{(\mathrm{s}, \mathrm{t}),(\mathrm{z}, \mathrm{y})\} \) are equivalent \( \{s\} \) is a subset of \( \{s, t\} \) The union of \( \{(a, b)\} \) and \( \{(b, c)\} \) is \( \{(a, b, c)\} \) A set must contain at least one element The intersection of the empty set and any set must be the empty set