1. Conditional Statements
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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 |
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 |