Pastorale

A logic puzzle by Lewis Carroll, July 2, 1893. What conclusion can be drawn from these premises?

  1. All who neither dance on tight-ropes nor eat penny-buns are old.
  2. Pigs that are liable to giddiness are treated with respect.
  3. A wise balloonist takes an umbrella with him.
  4. No one ought to lunch in public who looks ridiculous and eats penny-buns.
  5. Young creatures who go up in balloons are liable to giddiness.
  6. Fat creatures who look ridiculous may lunch in public, provided that they do not dance on tight-ropes.
  7. No wise creatures dance on tight-ropes if liable to giddiness.
  8. A pig looks ridiculous carrying an umbrella.
  9. All who do not dance on tight-ropes and who are treated with respect are fat.
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