2­3 Conditional Statements (2 days).notebook
Chapter 2­3: Conditional Statements
Conditional Statements
hypothesis
conclusion
If
Then
September 9, 2014
Example 1:
ex. Condtional statement:
All sharks have a boneless skeleton.
If-then Form:
If a fish is a shark, then it has a
boneless skeleton.
Sep 6­12:07 PM
Conditional Statements may be true or
false. To prove them true: present an
argument for all possible cases. [PROOF]
To prove them false, find a single
counterexample.
Sep 8­9:44 AM
Example 2:
*****IMPORTANT EXAMPLE!!!!
Sep 6­12:14 PM
Sep 8­9:45 AM
1
2­3 Conditional Statements (2 days).notebook
September 9, 2014
Converse of a statement is formed by switching
the hypothesis and the conclusion.
Example 3: Write the CONVERSE of
Example: Conditional Statement:
If Joe lives in Concord, then he lives in
Contra Costa County.
Converse:
If Joe lives in Contra Costa County, then
he lives in Concord.
EXAMPLE 1.
each conditional statement from
ex. If x + 2 = 8, then x = 6
Sep 6­12:21 PM
Sep 4­4:53 PM
Homework Assignment #13:
p. 111: #19­31 odd, 35­38 all, 39­45 odd
Jul 24­2:52 PM
2