
theorem Corr157i: :: Corollary 1.5.7 (i)
  for I being BinOp of [.0,1.],
      N being Fuzzy_Negation st
    I is N-satisfying_CP holds
      I is satisfying_(I1) iff I is satisfying_(I2)
        by Lemma154i,Lemma154ii;
