It says if the first born puts out his head alive and then dies, the second born is not a bechor regarding inheritance. But if it put out its head and died that day, it would be nonviable. Then it seems as if the secondborn WOULD be a bechor re inheritance! Isn't it the first viable child?
Barry Epstein, Dallas, USA
See the first Mishnah of the eigth Perek of Bechoros. Viability is only when the father agonizes over his death. A full term baby who dies pre-empts Bechorah.
D. Zupnik