Sentence Relations and Truth

Sentence Relations and Truth

1. logic & truth

   • modus ponens
   • modus tollens
   • hypothetical syllogism
   • every truth is empirical
     • true value
     • true conditions

2. necessary truth, a priori truth & analycity

   • a priori
     • truth known before
   • a posteriori
     • truth known after experiences
   • contingent
     • tuths that can be contradicted depending on facts
   • analytic
     • truth follows from the meaning

3. entailment

   • there are fixed truth relations
     • we can examine this by looking at the entailment
       • paraphrase
         • sentences with same set of entailments
           • mutually entei

4. presuposition

   • failure
   • triggers
     • factive verbs
   • context
     • defeasbility
       • the presuposition os cancelled by our general knowledge of the world
   • pragmatic theories
     • common ground
     • accommodation