Discrete Mathematics

2. because p˄¬ p is always false
5. of a statement is the opposite of the given mathematical statement.
6. means reasoning
8. of a function is the set of values that we are allowed to plug into our function
9. function g(x) = x - 4 is a one to one function since it produces a different answer for every input.
11. A={1,2,3} B={x,y,z} R={(1,y)(1,z)(3,y)} R(R)={y,z}
13. (p/\q)-->(p V q)
17. is a declarative sentence that is either true or false, but not both.
19. between two sets is a collection of ordered pairs containing one object from each set.

1. statement is a statement that can be written in the form “If P then Q,” where P and Q are sentences
3. is denoted ∩
4. is a statement formed by adding two statements with the connector AND
7. |{x,y,2}|=3 the number of elements in a mathematical set.
10. in mathematics, are an organized collection of objects
12. compound proposition that is neither a tautology nor a
14. is notated ⋃
15. is a statement involving an or.
16. function is one whose image is the same as its codomain.
18. is a set with an endless list of elements
20. is the unique set having no elements