Quantifiers Questions - - Question 4

Although all contemporary advertising tries to persuade, only a small portion of contemporary advertising can be cons...

naty0405 October 10, 2019

only

i understand how some and how only are diagram but i do not understand why in this case the "only" was considered as a quantifier and not a sufficient condition, how would i know which one to choose???????

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naty0405 October 10, 2019

and not as a necesary condition****

Skylar November 7, 2019

@naty0405 Happy to help!

Here, the word "only" is used in the context of "only a small portion of contemporary advertising can be considered morally reprehensible." So, the word "only" modifies the phrase "a small portion," not the variables in question. "A small portion" meets our definition of some as at least one, so this is a quantifier. The more you practice, the easier it should be to recognize Sufficient and Necessary terminology. Taking a step back to make sure you understand the logic/message of the passage before attempting to diagram is also very helpful.

Does this help? Let us know if you have additional questions!

Brett-Lindsay July 15, 2020

Thanks @Skylar!
I'd been intuitively choosing when "only" was used as a quantifier and as a necessary condition.

Modifying the variable = necessary condition
Modifying a measure word or quantifier = quantifier

So simple, but understanding it consciously leads to higher accuracy.

May-Salah December 26, 2020

ive read your response several times @skylar, i understand that the more practice i do the more comfortable i get with the terminology, but i still dont understand what the rule is for when we recognize "only" as a quantifier vs when we recognize it to introduce a necessary condition?