Yes. GetProspect automatically verifies all the email addresses which are found using any of the GetProspect search options. In other words, if an email address was found by GetProspect, the verification is included and you don't need to verify this email address additionally. You will see the email address status next to it. It can be either valid or accept all. Learn more on the verification statuses.
However, if you import your own file with email addresses which were found using other sources, you might want to verify these email addresses using GetProspect email verification feature.