Let X be the set of all students at MSU, and let M(s) be s is a math major, C(s) be s is a computer science major, and let P(s) be s is a physics major. Express the following statements using quantifiers, variables, and the predicates M(s), C(s), and E(s).

1) Some computer science students are also physics majors.

2) No mathematics students are also physics majors.

3) There is a computer science student who is both math and physics major.