Big Ideas Math Integrated I, 2016
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Big Ideas Math Integrated I, 2016 View details
1. Conditional Statements
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Exercise 14 Page 446

A conditional statement is only false when a true hypothesis produces a false conclusion.

p q ~ q p→ ~ q
T T F F
T F T T
F T F T
F F T T
Practice makes perfect
We are asked to make a truth table to the following conditional statement. p → ~ q To do so, let start by recalling the truth table of the conditional statement p→ q.
p q p→ q
T T T
T F F
F T T
F F T

To create the truth table for p→ ~ q, we first need to negate q. The truth value of a negation is the opposite of the truth value of the original statement.

q ~ q
T F
F T
T F
F T

Note that a conditional statement is only false when a true hypothesis produces a false conclusion. With this information, we can complete the truth table.

p q ~ q p→ ~ q
T T F F
T F T T
F T F T
F F T T