4 ms·Didn't he invent a numbering schema for classifying CA? That should count as an achievement.by daneelsan 4y agoDidn't he invent a numbering schema for classifying CA? That should count as an achievement.mrjangles 4y agoThe fact that no one could possibly have a clue what this sentence means is a pretty good indication of how important this work was.daneelsan 4y agoOK bud