SENTENCE RELATIONS AND TRUTH

SENTENCE RELATIONS AND TRUTH

1. TRUTH

   • Empirical (contingent): we have to have some access to the facts of the world to know whether a statement is true or not.
   • Truth value: is a sentence's being true or false.
     • Truth conditions: it's called the facts that would have to obtain in reality to make a sentence true or false.
   • Propositional logic: is the study of the truth effects of certain connectives.
   • A priori: is the truth that is known before or without experience.
     • A posteriori: the opposite to "a priori".
   • Logical form: here a lower- case letter stands for the statement and a special symbol for negation.
   • Truth relations
     • Entailment

2. Logic

   • Modus ponems: is a type of argument in three steps.

3. Presupposition

   • Presupposition triggers
   • intonation

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