Yevamot 51: The Consensus on Levirate Betrothal

NOTE: It's not you, it's us. Several events coincided to render the past several weeks very hectic for us (in different ways). Please God, we'll go back to releasing the episodes first thing in the Israeli morning in the next few days, at worst. || Why does Rabban Gamliel say there's no divorce after divorce, or betrothal after betrothal? But also, how do betrothal and cohabitation interact....? Plus, the sages disagreement with Rabban Gamliel. Also, a defective cohabitation - how does that compare to Levirate betrothal? Also, a general consensus that ma'amar is very effective. And tracing the sources of each rabbi who signs on for this position.