What is "ha'Kerovah eilav" coming to include?
What are the implications of "asher Lo Haysah le'Ish"?
Rashi: It means that she is not married. 1
Eeven though, Havayah' usually means Kidushin (betrothal).
And why does the Torah add the words "lah Yitama"?
Rashi: To teach us that burying the above-mentioned relatives is not just permitted; it is a Mitzvah!