84 comments

  • 6 days ago

    im confused you say pick either idea and make it necessary condition. I figured that in conditional logic, the hardest part was confusing sufficent with necessary clause. How can we just pick either idea, when one is the sufficient (trigger) from a nesseary result?

    3
  • Thursday, Jan 08

    Sufficient conditions:

    if, when, where, all, every, any

    Necessary conditions:

    only, only if, only when, only where, always, must

    Negate, sufficient:

    or, unless, until, without

    Negate, necessary:

    no, none, not both, and cannot

    7
  • Wednesday, Jan 07

    So is the only/best way to identify these conditions to memorize all of the indicator words? Because there are a LOT of them lol

    4
  • Wednesday, Nov 26 2025

    What if the thing you negate is already negative? Do you just positive it?

    2
  • Friday, Nov 14 2025

    I remember this by: The "No" Group

    All of group 4 words, even if they don't contain the word no, essentially mean no.

    -NO

    -NOne

    -NOt Both

    -CanNOt

    -Never

    (Never doesn't work as well for the mnemonic but it is fine)

    3
  • Wednesday, Nov 12 2025

    Just had a quick question. Might be a stupid one

    I see how the words for group 3 need at least two clauses, and words of group 4 can start with one clause. Am I right?? Would this be a right way to understand this

    1
  • Edited Sunday, Oct 05 2025

    #J.Y. Feedback.

    You should have said 'never' in your original video, monkey.

    (-_-)

    -13
  • Monday, Sep 22 2025

    'Never' is missing from this list

    3
  • Thursday, Sep 04 2025

    So if my subject of choice is on the right side of the arrow it is necessary, and on the left side it is sufficient?

    A --> B (A is sufficient)

    B --> A (A is necessary)

    This right?

    2
  • Sunday, Aug 17 2025

    I've studied for the LSAT on and off for literal years and always struggled with this concept because I was initially taught a "no torpedo" method (iykyk). This method is GOLD!! So simple and easy.

    1
  • Friday, Aug 01 2025

    I don't get how you can just pick any idea and choose if it's going to be the sufficient or necessary condition. Shouldn't we understand what the sentence is trying to say too?

    3
  • Wednesday, Jul 23 2025

    Group 4 logical indicators: no, none, not both, cannot

    Group 4 rule: You pick either idea, then negate that idea, then make that idea the necessary condition.

    0
  • Friday, Jun 27 2025

    If I did it like:

    Idea 1: American attended

    Idea 2: Dictator's party

    Negate Idea 1 and make it "necessary": dictator's party -> /American attended

    Translate to English: If it's a dictator's party, then no American attended

    Would this still be correct? I think I messed up at breaking up the predicate?

    1
  • Tuesday, Jun 03 2025

    Maybe this gets covered in another lesson, but what do we do if we see "most" or "some" in support for a claim on a test question?

    Ex: All public places are comfortable. Most public places that are well-designed have art.

    When I'm translating I'm stuck on what to do. I think a good rule of thumb is that you pretty much ignore "most" or "some" claims that show up in stimulus and answers?

    0
  • Saturday, Feb 22 2025

    #feedback#HELP!!!!! Okay I need help from someone. With the negate necessary I'll type out my thought process "None of the Americans attended the dictators party." I looked at that and noticed that its the group 4 indicator words. So I thought. /A----/D so I assigned /A because it says none of the Americans. Then I assigned /D because you have to negate the necessary claim but that's not correct. It is comparing Americans to the Dictators party. A---/D. What im saying is why do I keep assigning the None to Americans. What I think I see is that the none is the indicator word and it cannot act as an indicator word and a negation at the same time.

    Someone please help me with this give some examples that use no, none, and negations in the same sentence.

    0
  • Thursday, Feb 20 2025

    Has anyone found an easy way to memorize all of these indicators

    2
  • Thursday, Jan 30 2025

    I was wondering, do you think we should memorize all of the indicator words for all four groups?

    0
  • Thursday, Jan 02 2025

    What would be an example sentence with "not both"?

    0
  • Saturday, Dec 28 2024

    Just to confirm, the formula is always: Sufficient condition → Necessary condition

    Meaning, the sufficient is always on the left and necessary on the right?

    5
  • Monday, Oct 07 2024

    Quick question here: In the example wouldn't the translation be "if one is one of the Americans, then etc" OR "if one attended the dictator's party then one is not one of the Americans"?? I know this is small but presumably, there could be a group of Americans that the example is not referring to. Rather it is referring to some group of "the Americans" that according to the author could not include the broad group of all Americans. Am I right about this?

    3
  • Tuesday, Oct 01 2024

    So you can only do this if the specific conditional indicators listed for this video are present in the sentence?

    0
  • Monday, Sep 23 2024

    #feedback I think you might be missing never in your list of indicators.

    3
  • Saturday, Sep 21 2024

    #feedback

    Is this correct?

    Negate Sufficient: Negate both

    Negate Necessary: Negate one

    0
  • Saturday, Sep 21 2024

    So, is there such a thing as a true necessary condition, or is this exercise mainly about understanding the prompt, since we can turn any condition into a necessary one just by negating it when these specific indicators are present?

    0
  • Sunday, Sep 15 2024

    #feedback

    I've done a whole course and watched so many videos, and this is the first one that's truly made sense to me thank you.

    I found the other methods tended to work 90% of the time, but became tricky when the language got more confusing.

    I at first learned with Power scores "unless" rule which is ultimately the same thing( when you see unless, put the word following unless as necessary and then negate the sufficient.) The problem with this rule is it would really trip me up when group 3 and group 4 rules got combined. This makes a lot more sense relationship wise and it clicked seeing the relationship between the normal and the contrapositive.

    2

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