Lesson 02.07

Logic, Focus Points


     Here are all the focus points listed for the Logic Section.  They should provide you a way for quick review.    

  1. Three laws of logic
    1. The law of identity says that A is A, that if something exist it has a nature, a single nature.  It is what it is.
    2. The law of non-contradiction says that A cannot be both A and not A at the same time and in the same sense. Truth is not self-contradictory.
    3. The law of excluded middle says that a statement is either true or false.
  2. Logical Absolutes
    1. In order to have rational dialogue, we must assume that there are absolute truths.
    2. We cannot have rational dialogue without presupposing logical absolutes.
    3. If there were no such things as logical absolutes, then everything would be relative and no truth could be established.
  3. Logical Absolutes and God
    1. Logical absolutes are conceptual by nature, not physical.
    2. Logical absolutes are not dependent upon human minds.
    3. Logical absolutes transcend space and time.
    4. A person's thoughts are a reflection of his mind.
    5. Therefore, there is a transcendent and absolute mind that is authoring the logical absolutes.
  4. Deduction and Induction
    1. Deduction is a form of logic that works from the general to the specific, drawing necessary conclusions from the premises.
    2. Induction is a form of logic that works from the specific to the general, drawing probable conclusions from the premises.
    3. Sometimes people use induction as a substitute for deduction and erroneously make over generalized statements.
  5. (found in full version)

 


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