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 1 10|      claim this characteristic. "Socrates is ill" is the contrary
 2 10|         ill" is the contrary of "Socrates is well", but not even of
 3 10|          the other false. For if Socrates exists, one will be true
 4 10|      will be false; for neither "Socrates is ill" nor "Socrates is
 5 10|   neither "Socrates is ill" nor "Socrates is well" is true, if Socrates
 6 10|    Socrates is well" is true, if Socrates does not exist at all.~In
 7 10|        and the other false. For "Socrates has sight" is the opposite
 8 10|       sight" is the opposite of "Socrates is blind" in the sense of
 9 10| possession and privation. Now if Socrates exists, it is not necessary
10 10|       both are false, as also if Socrates is altogether non-existent.~
11 10|         true. For manifestly, if Socrates exists, one of the two propositions "
12 10|         of the two propositions "Socrates is ill", "Socrates is not
13 10| propositions "Socrates is ill", "Socrates is not ill", is true, and
14 11|       Again, since the fact that Socrates is ill is the contrary of
15 11|        contrary of the fact that Socrates is well, and two contrary
16 11|       exist at once: for if that Socrates was well was a fact, then
17 11|       well was a fact, then that Socrates was ill could not possibly