Statement Form/Examples/Arbitrary Example 6

Example of Statement Form

If the murderer has not left the country, then somebody is harbouring him

has the statement form

$\neg A \implies B$

where:

$A$ stands for The murderer has left the country

$B$ stands for Somebody is harbouring him.

Sources

• 1988: Alan G. Hamilton: Logic for Mathematicians (2nd ed.) ... (previous) ... (next): $\S 1$: Informal statement calculus: $\S 1.1$: Statements and connectives: Exercises $1 \ \text {(f)}$