1. Mayers showed that ( computationally quantum ) quantum commitment is impossible : an unconditionally unlimited attacker can break any secure commitment protocol .
2. Mayers showed that quantum binding is impossible ( computationally quantum ) : an unconditionally unlimited attacker can break any secure commitment protocol .

yes

1. Johnny Triumph frequently collaborates with the singer Bjork and has performed with The Sugarcubes as Sjon .
2. Johnny Triumph often collaborates with the singer Bjork and has performed as Sjon with The Sugarcubes .

yes

1. Coins were described using only three adjectives : '' good , '' fine '' or '' uncirculated '' .
2. Coins were described using only three adjectives : '' fine '' , '' good '' , or '' immovable '' .
yes