Can a man father legal children after death?
If semen was extracted from a dead man, and then used to impregnate a woman, is the offspring a legal son (let's limit it to male) of the dead man?
Or, more simply put, is a child born of ones semen (either before or after death and without or without his permission) a legal child, which would have many consequences in Halacha. Such as inheritance, Chalitsah and other such related categories. If not, how is his lineage to be viewed?