People are very careful (and rightfully so) to say when they don't understand the words of the Achronim or Rishonim to not say they are/were "wrong". But rather to say "I don't understand what he ...
On one hand, I've seen a rule from the Acharonim (I've also seen it in a Shach on Choshen Mishpat also but I can't remember where) that whatever the Gaonim say is "Divrei Kabalah" from the time of the ...
The Shut Min Hashamayim was written by a Rishon in the time of Tosfos. He used to ask questions from Shamayim (Heaven) in a Sheilas Chalom (Dream Question) and write the answers down. Many of those ...
Mahloket Rishonim how many strings should be used in the Techelet. One string (Raavad) Two strings (Rashi, Tosafot, Rosh and Tur) Half string (Rambam) In a case of an argument like this who would ...