Don't get me wrong, its not an 'easy' unit where everyone gets high marks. the mid semester was out of 40 and the average was 20s. If you get a good mark you wont be scaled down. As a said, its a unit which u know what they expect and your mind is always focused on one book and not a clutter of other texts.
redruM said:
cyan, what sort of things do you look at in that subject?
what are the exam questions like?
you look at the structure of sentences and assertions. You derive a formula (which represents a sentence) into an equivalent formula. There are symbols you use, 'v' '&' '->' '<->' that represent things such as 'or' 'and' 'if..then' 'if and only if'.
If you did Critical thinking then you will have an advantage. You look at sentences and derive them into PL and QL. which are their own languages. I'll show you an example, but don't get stressed out by how weird it looks!!!!
(This example is copied from the PHIL134 website)
(ii) "x [Fx] : ( (Fa & Fb) & (Fc & Fd)
{1} 1. "x [Fx] Premise
{1} 2. Fa 1 UE
{1} 3. Fb 1 UE
{1} 4. Fa & Fb 2,3 &I
{1} 5. Fc 1 UE
{1} 6. Fd 1 UE
{1} 7. Fc & Fd 5,6 &I
{1} 8. (Fa & Fb) & (Fc & Fd) 4,7 &I
The symbols didn't turn out... " is meant to be an upside-down A. So your deriving the first sentence into the 2nd sentence. Again, don't worry if it looks hard, you learn what it all means. You need an interpretation of the sentence, so ill make F=freaky (predicate). a=Alex, b=Bob,C=Cat, D=Don (names). so, what this complicated sentence says is the very elementary 'All things are feaky, therefore, alex is freaky, bob is freaky, cat is freaky and don is freaky.
If you think that is making something simple look hard:
$x [$y [$z [(((Gx & Gy) & Gz) & (~(x = y) & ~(y = z) & ~(x = z)))
& ("w [Gw ® (w = x) v (w = y) v (w = z )])]]]
$=upside down E, R symbol=->
When G=God. All this means is that 'there are exactly 3 gods'
So this is the kind of stuff you do. if you like maths and how it all seems to 'go together' then you will probably like logic.
Oh, and the text says some rubbish right at the begining which says there is a high fail rate in logic traditionally. don't worry about that, he is just trying to scare you.