Reish Lakish brings a case of someone eating pigul and notar at the same time and says that one can’t get lashes for that. The gemara makes 3 assumptions about Reish Lakish’s opinion but then questions one of them and rejects it. The gemara also questions Reish Lakish based on our mishna and concludes that our mishna holds by Rabbi Yehuda and Reish Lakish holds like the rabbis. The gemara then brings a contradiction between 2 sources relating to Rabbi Yehuda’s opinion. The argument mentioned at the end of the mishna between Rabbi Eliezer and tanna kamma is also explained – 2 opinions are brought to explain what is the basis of their argument.