Halacha:

Niddah 

References: Nidah: 12b ,  Nidah: 15a ,  Nidah: 63a ,  Nidah: 63b ,  Rif: ketuvos end of 11 perek  

Description

This chaburah explained the different types of vestos according to the various Rishonim and applied this to the case of roe machmas tashmish specifically addressing the opinion of the Rif and the Rambam