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  1. I dreamed that John F. Kennedy was born in 1917, and everything I dream is true. Therefore, Kennedy was born in 1917.
  2. All horses are animals. Therefore, all heads of horses are heads of animals.
  3. If 'There is no truth' is true, it is false. Thus, it is false.
  • First off welcome to philosophy.SE. For questions, you should limit yourself to one-question per question. "syllogism" is a word that has more than one functional meaning. Can you clarify the definition you were taught to use? – virmaior Aug 29 '18 at 4:24
  • well to clarify, the question said "syllogistic," and for the definition, we simply learned that we can derive a conclusion from propositions and can appraise validity through venn diagrams. – Monica Aug 29 '18 at 4:34
  • What is your def of Syllogism ? It seems to me that you are using it as synonym of valid argument. – Mauro ALLEGRANZA Aug 29 '18 at 6:39
  • The course does not specify its definition of syllogistic sentence. I am supposing it wants me to use a general definition. – Monica Aug 29 '18 at 6:53
  • Truth functional may mean : symbolized with classical propositional logic. If so, both 1 and 2 are not truth-fucntional (they need quantifiers). – Mauro ALLEGRANZA Aug 29 '18 at 7:30

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