The Game of Logic
  1. Propositions beginning with "some" or "all".
  2. When they begin with "some" or "no". For example, "some abc are def" may be re-arranged as "some bf are acde", each being equivalent to "some abcdef exist".
  3. Some tigers are fierce, No tigers are not-fierce.
  4. Some hard-boiled eggs are unwholesome, No hard-boiled eggs are wholesome.
  5. Some I's are happy, No I's are unhappy.
  6. Some Johns are not at home, No Johns are at home.
  7. The Things, in each compartment of the larger Diagram, possess THREE Attributes, whose symbols will be found written at three of the CORNERS of the compartment (except in the case of m', which is not actually inserted in
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