> What on earth is a "teoric fallacy"?

My question too.  Wictionary and google both appear to agree, however, 
that while "teoric" isn't English, it's Catalan (or Aranese/Occitan, the 
area is NE Spain into south France) for "theoretical", which it /is/ 
close enough sounding/spelling to, to make sense as having the same 
original root (which wikipedia traces to late Latin from ancient Greek).

http://en.wiktionary.org/wiki/te%C3%B2ric