Answer
Florida is not a peninsula, or California is not a peninsula.
Work Step by Step
It is not true that Florida and California are both peninsulas.
Let p and q represent the following statements:
p: Florida is a peninsula.
q: California is a peninsula.
The statement is of the form ~(p ∧ q). An equivalent statement is ∼p v ∼q
Therefore, the given statement is equivalent to:
Florida is not a peninsula, or California is not a peninsula.