Individual km#philosophical_logic__philosophicallogic  deals with formal descriptions of natural language and hence philosophical logicians have contributed a great deal to the development of non-standard logics
  url:  http://en.wikipedia.org/wiki/Philosophical_logic
  >part of:  formal_logic
     >part of:  logic.philosophy  the branch of philosophy that analyzes inference
        >part of:  philosophy  the rational investigation of questions about existence and knowledge and ethics

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