Definition
The fallacious deduction is that: For every A, there is a B, such that C. Therefore, there is a B, such that for every A, C.
However, an inverse switching:
is logically valid.
Read more about this topic: Quantifier Shift
Famous quotes containing the word definition:
“No man, not even a doctor, ever gives any other definition of what a nurse should be than this—”devoted and obedient.” This definition would do just as well for a porter. It might even do for a horse. It would not do for a policeman.”
—Florence Nightingale (1820–1910)
“One definition of man is “an intelligence served by organs.””
—Ralph Waldo Emerson (1803–1882)
“... we all know the wag’s definition of a philanthropist: a man whose charity increases directly as the square of the distance.”
—George Eliot [Mary Ann (or Marian)