ugh. i hate that we're using a slash for negation instead of a turnstile, tilde, or even exclamation point. I'm going to confuse it for a slash between two premises.
Might be jumping the gun here, but is it safe to say that negating is useful for categorical arguments? Like if the argument is
All cats are sad. Garfield is a cat, therefore Garfield is sad.
The negation of sad would be unhappy, neutral, etc. which would allow other members of the cat set to feel a wide range of "sad-adjacent" emotions? Could very well be overthinking this and might hit myself later for even making this comment :-)
Yo so i took a practice test and it had the phrasing un- like unhot or unwashed is this enough to go on to say it's equivellent to not or what are yall's thoughts
Is there a reason why 7sage uses "/" for negation rather than "~", which is commonly used in formal logic? Is this common practice in LSAT curriculums or unique to 7sage? Just curious.
How would you negate this example: "the rate of violent crimes has not risen in the last 5 years?" To spilt this example into two would it be "has not risen" and "has risen?" But doesn't this leave out the third option which is that it stayed the same?
Thank you
#help (Added by Admin)
1
Topics
PT Questions
Select Preptest
You've discovered a premium feature!
Subscribe to unlock everything that 7Sage has to offer.
Hold on there, stranger! You need a free account for that.
We love that you want to get going. Just create a free account below—it only takes a minute—and then you can continue!
Hold on there, stranger! You need a free account for that.
We love that you came here to read all the amazing posts from our 300,000+ members. They all have accounts too! Just create a free account below—it only takes a minute—and then you’re free to discuss anything!
Hold on there, stranger! You need a free account for that.
We love that you want to give us feedback! Just create a free account below—it only takes a minute—and then you’re free to vote on this!
Hold on there, you need to slow down.
We love that you want post in our discussion forum! Just come back in a bit to post again!
Subscribers can learn all the LSAT secrets.
Happens all the time: now that you've had a taste of the lessons, you just can't stop -- and you don't have to! Click the button.
40 comments
Cake or not-cake?
I jokingly said, "not rich" to negate rich, and I got it right, haha!
ugh. i hate that we're using a slash for negation instead of a turnstile, tilde, or even exclamation point. I'm going to confuse it for a slash between two premises.
From a more mathematical perspective…
Negation is distributive, and when the negation acts on ANDs and ORs, they switch.
Example:
Let’s assume our financial state is one of these four:
Rich
Comfy
Poor
Broke
Rich is then logically equivalent to (could be replaced by):
not comfy AND not poor AND not broke
So then, NOT Rich is logically equivalent to:
not (not comfy AND not poor AND not broke)
Using the distributive property of the negation (just as a negative multiple is distributed through parenthesis) and the AND to OR rule…
Not Rich = comfy OR poor OR broke
Assuming we can only have one financial state at a time, we can clearly see that the negation of Rich is not poor, but any other state besides Rich.
this is just the joke that everything in the world is either a salad or not a salad
Might be jumping the gun here, but is it safe to say that negating is useful for categorical arguments? Like if the argument is
All cats are sad. Garfield is a cat, therefore Garfield is sad.
The negation of sad would be unhappy, neutral, etc. which would allow other members of the cat set to feel a wide range of "sad-adjacent" emotions? Could very well be overthinking this and might hit myself later for even making this comment :-)
So a similar rule to Negative Comparatives in that it opens the door to multiple possibilities as opposed to one clear answer?
Correction: Padawans are Jedi (members of the Jedi Order), but they're just not Jedi Knights (who are required to pass the trials). you're welcome :0
"Man's not hot never hot"
Man may be...
warm
cold
cool
tepid
room temp
freezing
Yo so i took a practice test and it had the phrasing un- like unhot or unwashed is this enough to go on to say it's equivellent to not or what are yall's thoughts
I thought the opposite of hot was chopped
Everything in the universe is either a potato or not a potato.
Is this a negation, a true statement, or valid statement?
(I was sort of joking when I began this comment, but now I'm genuinely wondering.)
Hardest example for me to perceive so far: Jedi....
This helps me better understand the Disney question from earlier
Isn't the negation symbol:
¬
Please tell me if this is wrong or right?
The slash negation symbolism is making my formal logic phil background go insane
As a software dev, I loathe that / is used for negation rather than ! (bang).
do we need to know the importance of the language like the / even though I will be taking the test after August and do not need to know logic games?
How do you know when its necessary to use Negation and when its not necessary?
Is there a reason why 7sage uses "/" for negation rather than "~", which is commonly used in formal logic? Is this common practice in LSAT curriculums or unique to 7sage? Just curious.
In which lesson did we go over the A and a terms? I’m a bit confused on the role they’re meant to be in?
Does this information pertain mainly for LG, or does it apply to LR as well?
Concept of negation reminds me of the negative compartives from the Grammar section.
For example:
Tom is not taller than Athena.
Doesn't mean that Athena is taller than Tom. They could be equal heights.
Now, look at the example from this section:
The rate of violent crimes has not risen in the last 5 years.
Doesn't mean that the rate has fallen. It could remain the same.
How would you negate this example: "the rate of violent crimes has not risen in the last 5 years?" To spilt this example into two would it be "has not risen" and "has risen?" But doesn't this leave out the third option which is that it stayed the same?
Thank you
#help (Added by Admin)