Did The Rif And The Rambam See Eye To Eye?

Source SheetHistory of the Geonim and the RishonimHistory of the RifSeveral Halachik instances where the Rif disagrees with most other opinionsIs a jew allowed to ask a non jew to do a biblical prohibition on Shabbos if it's for a Mitzvah?How many Blessings do we make on Tefillin?Are the days of mourning Biblical or Rabbinic?Techum ShabbosHow many times do the Rif and the Rambam disagree?In what case can a Beis Din blow Shofar on Shabbos?What does the Rif hold in a case of Teiku or a Cohen who grabbed?Why does the Shulchan Aruch pasken like Rabeinu Tam in Shkiah and not like the Rif and the Rambam?Co-Sponsored by:- Moshe Krasnjansky: In Honor of my Yom huledes and refuah shleima for מושקא בת יוכבד שפרה ובת שבע בת יוכבד שפרה - Dovid Cohen: In Honor of Yehuda Cohen