Is there a trick for knowing when to use Venn diagrams to answer the question? E.g. I noticed you didn't use one for your second example - I tried and ended up getting a bit mixed up
Your example 2 as poly-syllogism (6:15): 1. Some cupboards are trees 2. Some trees are leaves 3. All leaves are jungles - - - Yours conclusions - - - (I) Some leaves are cupboards (your declaration - FALSE) (II) Some jungles are cupboards (your declaration - FALSE) (III) All trees are leaves (your declaration - FALSE) (IV) Some trees are jungles (your declaration - TRUE) All conclusions are INVALID. Algebraic calculation: x - cupboards, y - trees, z - leaves, v - jungles 1. I: Some cupboards are trees (xy+xy’) 2. I: Some trees are leaves (yz+yz’) 3. A: All leaves are jungles (zv) - - - Calculation Part1 (1,2): ((xy+xy’)*(yz+yz’))/Y = (xyz+xyz’)/Y = xz+xz’ [«/Y» - it’s delete middle term] - - - - - - - - - Calculation Part2 (+3): ((xz+xz’)*zv)/Z = (xzv)/Z = xv = vx - - - 4. A: There is cupboards so as jungles (xv) [meaning only as “trees” and “leaves”]. (equivalent: 4. A: There is jungles so as cupboards (vx) - VALID CONCLUSION Some more sorry… :-)
The some leaves are cupboards, does't make sense, I get why it's no, but it could also be yes. Surely, if some trees are leaves and some leaves are trees. Then there is a possibility that those leaves that are trees can also be cupboards, through association? In your previous syllogism video, you did hint to be aware of associations. So is it fair to say, in the future that if the link between two objects is far, then the answer is always no? If I'm mistaken I'd gladly take on your explanation for the future.
you actually answered your own concern. There is a possibility that some leaves are cupboards, but there is also the possibility that the cupboards who are trees, arent the same trees w ho are leaves. Therefore u can not say with 100% that some leaves are cupboards and therefore the conclusion is wrong.
Remember, if the syllogism is YES it has to be 100% true. If the syllogism is NO, it may be false or may be a possibility and we just don't know for sure!
i wish the syllogisms questions are this easy in the real exam
This is unbelievably good the vent diagrams have helped me immensely
Thank you for your kind comments!
3 years later and its still helpful ! thank you
this is really good! it saves so much time!
the best videos for syllogisms
The patterns you introduced in lesson 2 were so useful for the questions in this video. Thank you for sharing :)
I'm glad you found them useful
u saved my life :)
That's very nice of you!
Is there a trick for knowing when to use Venn diagrams to answer the question? E.g. I noticed you didn't use one for your second example - I tried and ended up getting a bit mixed up
this is incredibly helpful. thank u so much
thank you this method is excellent!
Glad you've found it useful!
someone needed to make this video.
thanks soo much!
im sure that this approach is going to help me out in this section by atleast a few marks!
how would you do a venn diagram for example 2
Your example 2 as poly-syllogism (6:15):
1. Some cupboards are trees
2. Some trees are leaves
3. All leaves are jungles
- - - Yours conclusions - - -
(I) Some leaves are cupboards (your declaration - FALSE)
(II) Some jungles are cupboards (your declaration - FALSE)
(III) All trees are leaves (your declaration - FALSE)
(IV) Some trees are jungles (your declaration - TRUE)
All conclusions are INVALID.
Algebraic calculation:
x - cupboards, y - trees, z - leaves, v - jungles
1. I: Some cupboards are trees (xy+xy’)
2. I: Some trees are leaves (yz+yz’)
3. A: All leaves are jungles (zv)
- - - Calculation Part1 (1,2): ((xy+xy’)*(yz+yz’))/Y = (xyz+xyz’)/Y = xz+xz’ [«/Y» - it’s delete middle term] - - -
- - -
- - - Calculation Part2 (+3): ((xz+xz’)*zv)/Z = (xzv)/Z = xv = vx - - -
4. A: There is cupboards so as jungles (xv) [meaning only as “trees” and “leaves”]. (equivalent: 4. A: There is jungles so as cupboards (vx)
- VALID CONCLUSION
Some more sorry… :-)
This is really helpful
The some leaves are cupboards, does't make sense, I get why it's no, but it could also be yes.
Surely, if some trees are leaves and some leaves are trees. Then there is a possibility that those leaves that are trees can also be cupboards, through association?
In your previous syllogism video, you did hint to be aware of associations. So is it fair to say, in the future that if the link between two objects is far, then the answer is always no?
If I'm mistaken I'd gladly take on your explanation for the future.
you actually answered your own concern. There is a possibility that some leaves are cupboards, but there is also the possibility that the cupboards who are trees, arent the same trees w ho are leaves. Therefore u can not say with 100% that some leaves are cupboards and therefore the conclusion is wrong.
Remember, if the syllogism is YES it has to be 100% true. If the syllogism is NO, it may be false or may be a possibility and we just don't know for sure!
this is the best
cheers
What score in each section is considered good
Around 600
@@arnemamiah1666 so if a university is using a ranking system an i get a 600 would I be considered at one of the top candidates??
@@anon4797 lol no you need closer to 800. definitely more than 700.
@@casualstuff3389 650 is now considered an average score. So to "stand out" you'll need to be averaging above 700 and Band 1
ven diagram king
the way u say syllogisms is triggering lmao