1. X being a seahawk is a sufficient condition for X being a bird.  2. X being a seahawk is a necessary condition for X being a bird. 3. Being a player for the Miami Dolphins is a necessary condition for being an NFL player.  4. X being logically possible is a necessary condition for X being physically possible. 5. X being logically possible is a sufficient condition for X being physically possible. 6. X being physically possible is a necessary condition for X being logically possible. 7. X being physically possible is a sufficient condition for X being logically possible. 8. It is logically possible for humans to be immortal. 9. It is physically possible for humans to be immortal. 10. It is logically possible for a bachelor to be married.    Arts & Humanities Philosophy