Design of artificial intelligence must read[1 paradox]Why 0.999... is
not equal to 1?Written in 2012The current mathematic theory tells us,
1>0.9, 1>0.99, 1>0.999, ..., but at last it says 1=0.999..., a negation
of itself (Proof 0.999... =1: 1/9=0.11...
