Shevuot 41: Warnings, Knowing the Months

Points from today's daf, briefly:

• the rabbis debate which source is used to prove that warning is required
• when one has been warned, one has agreed to be killed for his transgression
• how do we know whether a person has been warned for one transgression and not another?
• the example of a woman who may have been warned about being removed from her adulterer or about being killed for her transgression
• a chaver/a needs no official warning 
• the rabbis speak of testimonies that match and testimonies that do not match
• the rabbis disagree about whether or not Rav Yochanan ben Zakai could have dismissed testimony based on the disagreement about the size of fig stems (they walk through his life's events to determine if he could have judged at the time of that case)
• The rabbis discuss whether it is necessary for witnesses to correctly answer detailed questions about what they saw
• The rabbis better understand whether or not a witness heard that the month was me'ubar, which is assumed to be known by the second half of the month
• We end with a conversation about by when a person must have blessed a new moon