In the context of the play The Crucible, John Proctor says this phrase to John Hale when he enters his house. John Hale is a minister who has been sent to Salem to investigate the accusations of witchcraft. John Proctor is one of the people who has been accused of witchcraft. By saying "I hope you are hearty," John Proctor is expressing his hope that John Hale is in good health.
However, this phrase can also be interpreted as a more subtle comment on the nature of the witch trials in Salem. The phrase "I hope you are hearty" is often used as a greeting, and it is typically understood to be a polite and impersonal expression. However, in the context of the play, the phrase can also be seen as a way for John Proctor to distance himself from the accusations of witchcraft. By saying "I hope you are hearty," John Proctor is implying that he does not believe in witchcraft and that he does not want to be associated with the witch trials.
Ultimately, the meaning of this phrase is complex and ambiguous, and it can be interpreted in different ways depending on the context in which it is used.