For #17: Parallel Form

I got confused on how to diagram it (I understood everything except how to diagram (Note: the way I diagram for these is using broad A-->B,etc since the context isn't impotrant but the form of the logic is):

The stimulus says that:

-some halogen lamps are well-crafted

-because halogen lamps from most major manufacturers are on display at FL

-and any item on display at FL is well-crafted

I wrote it as

some A-->B or A(--some-)B

A-->C

C-->B

But my diagram is wrong for:

because halogen lamps from most major manufacturers are on display at FL

it should be A(-some-)C

why is it some?

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2 comments

  • Friday, Nov 13 2015

    D-->WC

    HLMM most D

    -----------------------------

    HL some WC

    The conclusion is a some statement because a most statement can always be reworded into a some statement. Some can mean anything from 1 to all (which therefore includes the possibility of more than 50%). It's sort of like saying a square is also a rectangle, it's just a special type of rectangle. A most statement is also a some statement, it's just a special type of some statement (one that means greater than 50%).

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  • Friday, Nov 13 2015

    Bumping this to the top so users can see it!

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