Sanhedrin 65: How Do You Prove That Shabbat Is Shabbat?

A new mishnah! On the "ove ve-yedoni," necromancer and sorcerer, and when their death sentences (stoning) kick in. Plus, what are the differences between these two. With a parallel, but just the ove, in the tractate Keritot. The Gemara explains why only the ove is there (hint: machloket). Also, a story in which Rabbi Akiva meets the Roman leader Turnus Rufus. With more on the ove -- in a perverse sexual way - as compared to one who "consults" a skull. Plus, a theological discussion between Rabbi Akiva and Turnus Rufus, where the Roman demands proof from Rabbi Akiva.