Obversion

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Obversion \Ob*ver"sion\ ([o^]b*v[~e]r"sh[u^]n), n. [L. obversio
     a turning towards.]
     1. The act of turning toward or downward.
        [1913 Webster]
  
     2. (Logic) The act of immediate inference, by which we deny


        the opposite of anything which has been affirmed; as, all
        men are mortal; then, by obversion, no men are immortal.
        This is also described as "immediate inference by
        privative conception." --Bain.
        [1913 Webster]