mdd and yitai…- thanks for your comments.
As far as the Zedokkim and Karaites go- indeed, they did not believe in torah she baal peh while we certainly do- the question here is not the authority of torah she baal peh – this is self evident and I venture to say that every poster here believes in torah shebaal peh misinai- but is it “kefirah”? The word ‘kefirah’ has a narrow meaning and , usually, means to say that soemone does not believe in torah misinai. I daresay that president peres may be classified in this group but not because he spoke about “ten thousand years “.
As far as yitay-‘s comments- I will check the rambam in chelek -although you do know that the “pirush hamisnayos” was written in arabic, with many inconsistencies in its translations.