In: Advanced Math
1) Consider the statement: “If it snows then we will stay home”. Find the:
Converse
Inverse
Contra-positive
Assuming the original statement is true, which statements must also be true?
Determine if the statement is true or false and provide a counter-example for the false statements.
The sum of two integers is an integer.
Prime numbers are odd.
The product of two irrational numbers is irrational.
The sum of a rational number and an irrational number is irrational.
(1)
(a)
Given statement: "If it snows, then we will stay home"
Converse:
If we will stay home, then it snows."
Explanation:
Converse is the switching the hypothesis and conclusion of a conditional statement.
(b)
Given statement: "If it snows, then we will stay home"
Inverse:
If it does not snow, then we will not stay home
Explanation:
Inverse of a conditional statement is when both the hypothesis and conclusion are negated.
(c)
Given statement: "If it snows, then we will stay home"
Contra - positive:
If we will not stay home, then it does not rain.
Explanation:
Contra - positive is switching the hypothesis and conclusion of a
conditional statement and negating both.
(d)
Assuming the original statement is true, (c) Contra - positive statement must also be true.
Explanation:
The contra - positive of any true proposition must also be true.
(2)
(a)
The sum of two integers is an integer. : True
(b)
Prime numbers are odd. : False
Counter example: 2 is a prime number. It is even.
(c)
The product of two irrational numbers is irrational. : False
Counter example: is irrational. But is rational number
(d)
The sum of a rational number and an irrational number is irrational. True