*   we've discussed deductive argument validity
    and soundness;

*   now let's discuss inductive argument strength 
    and cogency

*   inductive STRENGTH - is an inductive argument STRONG
    *   a LITTLE trickier than determining deductive
        argument validity;

        (because of the nature of inductive arguments)

    *   but some guidelines include:
        *   as for deductive arguments, we look at
	    the LOGICAL FORM of th argument,
	    and do not yet concern ourselves with
	    whether the premises are actually true;

        *   key question:
	    IF the argument's premises were true,
	    WOULD the conclusion PROBABLY be true?

    *   that is, a STRONG inductive argument needs to
        have a PLAUSIBLY BELIEVABLE logical structure

*   inductive COGENCY - 
    *   a COGENT inductive argument needs to be:
        *   STRONG (have a strong logical structure)
        *   AND the argument makes statements that are
	    true in "real life"
	    *   this can include "making sense" to us
	        based on our own knowledge and experience
            *   this can vary from person to person

*******
so NOTE:
*******
*   do you see that:
    *   for a DEDUCTIVE argument:
        it might be INVALID and UNSOUND
                 or VALID and SOUND
		 or VALID and UNSOUND
        *   can't be INVALID and SOUND, because
	    to be even considered as SOUND, a
	    deductive argument must first be VALID

    p. 80 of course text:

          deductive arguments
           /            \
        Valid         Invalid (ALL of these are UNSOUND)
       /     \
    Sound   Unsound

*   do you see that:
    *   for a INDUCTIVE argument:
        it might be WEAK and NOT COGENT
                 or STRONG and COGENT
		 or STRONG and NOT COGENT
        *   can't be WEAK and COGENT, because
	    to be even considered as COGENT, an
	    inductive argument must first be STRONG

    p. 80 of course text:

          inductive arguments
           /            \
        Strong         Weak (ALL of these are NOT COGENT)
       /     \
    Cogent   Not Cogent

*   ONE of our Chapter 3 patterns of deductive
    reasoning is Categorical Syllogism

    *   a 3 line argument in which each statement
        begins with ALL, SOME or NO

*   in Chapter 9 - Categorical Logic --
    we will give us TOOLS for better judging
    the VALIDITY of categorical syllogisms
    (remember, then, that's judging their
    logical structure)