For the source text click/tap here: Ketubot 85
To download, click/tap here: PDF
Our daf begins with a case that helps to explain whether property can be seized after someone has died.
The Gemara wonders when one witness might be sufficient to affect the outcome of a case. The first example is not only a single witness, but that witness is a woman. Rav Chisda's daughter, Rava's wife - and Rava was the judge listening to her opinion.
When questioned about valuing her words as an individual witness, Rava said that he knew her well and she would not lie; he did not know another Rabbi as well and he could not comfortably trust that single witness in a case. Other examples of single witnesses are shared in the text.
We explore the hierarchy of witnesses vis a vis women as well as the evolution of women learning talmud over the last decades.