๐Ÿงญ

The Logical Consistency of Arguments

Agent Progress
Built
Keywords
๋…ผ์ฆ์˜ ๋…ผ๋ฆฌ์  ์ผ๊ด€์„ฑ / ๋ชจ์ˆœ ๋ถ€์žฌ / ํƒ€๋‹น์„ฑ / ์ „์ œ
Lesson #
S
Done
Section
Advanced Vocabulary
๐Ÿงญ
TL;DR ๐Ÿฆ„
  • ๐Ÿงญ ๋…ผ๋ฆฌ์  ์ผ๊ด€์„ฑ means an argumentโ€™s claims fit together without fighting each other.
  • ๐Ÿงฉ To test ๋…ผ์ฆ, track the ์ „์ œ, the ๊ทผ๊ฑฐ, and the ๊ฒฐ๋ก  before judging the reasoning.
  • โš–๏ธ A consistent argument can still be factually wrong or weak, so separate ๋ชจ์ˆœ ๋ถ€์žฌ from ํƒ€๋‹น์„ฑ.
๐ŸŽง
๐ŸŽง Iru Helper Note
Type any Korean term or sentence from this lesson into
Korean Helper Widgets
Korean Helper Widgets
to hear it read aloud. Advanced vocabulary gets friendlier when your ears recognize the rhythm too. ๐Ÿ—ฃ๏ธ
ย 

๐ŸŒˆ The Big Picture

When you read an argument, you are not only asking, โ€œDo I agree?โ€ You are asking, โ€œCan these ideas stand in the same room without throwing chairs?โ€ ๐Ÿช‘
The key term is ๋…ผ๋ฆฌ์  ์ผ๊ด€์„ฑ โ€” logical consistency. An argument has logical consistency when its premises, reasons, exceptions, and conclusion do not contradict one another. If one sentence says โ€œeveryone must follow the same ruleโ€ and the next says โ€œone group never has to follow it,โ€ your contradiction alarm should beep. ๐Ÿšจ
This lesson focuses on academic Korean vocabulary for evaluating argument structure: ๋…ผ์ฆ (argumentation), ์ „์ œ (premise), ๊ทผ๊ฑฐ (supporting reason/evidence), ๊ฒฐ๋ก  (conclusion), ๋ชจ์ˆœ (contradiction), ๋ชจ์ˆœ ๋ถ€์žฌ (absence of contradiction), and ํƒ€๋‹น์„ฑ (validity or soundness of reasoning). ๐Ÿง 
Important distinction: an argument can be logically consistent but still false. For example, if all the pieces fit together but the starting assumption is wrong, the structure may be neat while the claim is still unreliable. A tidy suitcase can still be packed with socks you do not need. ๐Ÿงฆ

๐ŸŽจ The Core Argument-Consistency Family

1. ๋…ผ์ฆ โ€” argumentation ๐Ÿงฑ

๋…ผ์ฆ means the process of supporting a claim with reasons. It usually contains:
  • ์ฃผ์žฅ โ†’ claim; the point being argued
  • ๊ทผ๊ฑฐ โ†’ reason/evidence; what supports the claim
  • ๊ฒฐ๋ก  โ†’ conclusion; the final judgment reached from the reasoning
Example idea:
์˜จ๋ผ์ธ ํšŒ์˜๋Š” ์ด๋™ ์‹œ๊ฐ„์„ ์ค„์ธ๋‹ค. ๋”ฐ๋ผ์„œ ์—…๋ฌด ํšจ์œจ์„ ๋†’์ผ ์ˆ˜ ์žˆ๋‹ค.
Online meetings reduce travel time. Therefore, they can improve work efficiency. ๐Ÿ’ป
The reason and conclusion point in the same direction, so the argument is basically consistent.

2. ์ „์ œ โ€” premise or assumption ๐Ÿ”

A ์ „์ œ is a starting point that the argument depends on. It can be openly stated or hidden.
Example:
๋Œ€์ค‘๊ตํ†ต ์ด์šฉ์ž๊ฐ€ ๋Š˜์–ด๋‚˜๋ฉด ๋„๋กœ์˜ ์ฐจ๋Ÿ‰ ์ˆ˜๊ฐ€ ์ค„์–ด๋“ ๋‹ค.
If public transportation users increase, the number of cars on the road decreases. ๐ŸšŒ
That sentence can be a premise for an argument about reducing congestion. If the premise does not hold in a specific situation, the argument becomes weaker.

3. ๋ชจ์ˆœ and ๋ชจ์ˆœ ๋ถ€์žฌ โ€” contradiction and no contradiction โš”๏ธ

๋ชจ์ˆœ means contradiction: two claims cannot both be true at the same time under the same conditions. ๋ชจ์ˆœ ๋ถ€์žฌ means absence of contradiction.
Contradictory:
๋ชจ๋“  ์ž๋ฃŒ๋ฅผ ๊ณต๊ฐœํ•ด์•ผ ํ•œ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ์–ด๋–ค ์ž๋ฃŒ๋„ ๊ณต๊ฐœํ•˜๋ฉด ์•ˆ ๋œ๋‹ค.
All materials must be disclosed. However, no materials should be disclosed. ๐Ÿ“„
Consistent with a condition:
์ผ๋ฐ˜ ์ž๋ฃŒ๋Š” ๊ณต๊ฐœํ•˜๋˜, ๊ฐœ์ธ์ •๋ณด๊ฐ€ ํฌํ•จ๋œ ์ž๋ฃŒ๋Š” ๋ณดํ˜ธํ•ด์•ผ ํ•œ๋‹ค.
General materials should be disclosed, but materials containing personal information should be protected. ๐Ÿ”
The second version avoids contradiction by clearly separating the conditions.

4. ํƒ€๋‹น์„ฑ โ€” validity or reasonable support โš–๏ธ

ํƒ€๋‹น์„ฑ asks whether the conclusion follows from the premises. A statement may sound fancy, but if the conclusion jumps beyond the evidence, the reasoning is weak.
Weak:
์ด ์ œํ’ˆ์€ ๊ด‘๊ณ ์— ์ž์ฃผ ๋‚˜์˜จ๋‹ค. ๋”ฐ๋ผ์„œ ํ’ˆ์งˆ์ด ๊ฐ€์žฅ ์šฐ์ˆ˜ํ•˜๋‹ค.
This product appears often in advertisements. Therefore, its quality is the best. ๐Ÿ“บ
Stronger:
์ด ์ œํ’ˆ์€ ๋‚ด๊ตฌ์„ฑ ์‹œํ—˜์—์„œ ๋†’์€ ์ ์ˆ˜๋ฅผ ๋ฐ›์•˜๋‹ค. ๋”ฐ๋ผ์„œ ํ’ˆ์งˆ์ด ์šฐ์ˆ˜ํ•˜๋‹ค๊ณ  ๋ณผ ์ˆ˜ ์žˆ๋‹ค.
This product received high scores in durability tests. Therefore, it can be considered high quality. ๐Ÿงช
The stronger version uses evidence that actually supports the conclusion.

๐Ÿ› ๏ธ How They Work in a Sentence

Pattern 1: ์ „์ œ์™€ ๊ฒฐ๋ก ์ด ์—ฐ๊ฒฐ๋˜๋‹ค โ€” the premise and conclusion are connected ๐Ÿ”—

์ด ๋…ผ์ฆ์€ ์ „์ œ์™€ ๊ฒฐ๋ก ์ด ์ž์—ฐ์Šค๋Ÿฝ๊ฒŒ ์—ฐ๊ฒฐ๋˜์–ด ์žˆ์–ด ๋…ผ๋ฆฌ์  ์ผ๊ด€์„ฑ์ด ์žˆ๋‹ค.
This argument has logical consistency because the premise and conclusion are naturally connected. ๐Ÿงญ
Notes: ์ž์—ฐ์Šค๋Ÿฝ๊ฒŒ means โ€œnaturally,โ€ and ์—ฐ๊ฒฐ๋˜๋‹ค means โ€œto be connected.โ€

Pattern 2: ์ฃผ์žฅ์ด ์„œ๋กœ ์ถฉ๋Œํ•˜๋‹ค โ€” claims conflict with each other ๐Ÿ’ฅ

์•ž์˜ ์ฃผ์žฅ์€ ๋’ค์˜ ์ฃผ์žฅ๊ณผ ์ถฉ๋Œํ•˜๋ฏ€๋กœ ๋ชจ์ˆœ์ด ๋ฐœ์ƒํ•œ๋‹ค.
The earlier claim conflicts with the later claim, so a contradiction occurs. ๐Ÿšง
Notes: ์•ž์˜ means โ€œearlier,โ€ ๋’ค์˜ means โ€œlater,โ€ and ์ถฉ๋Œํ•˜๋‹ค means โ€œto collide or conflict.โ€

Pattern 3: ๊ทผ๊ฑฐ์—์„œ ๊ฒฐ๋ก ์ด ๋„์ถœ๋˜๋‹ค โ€” a conclusion is drawn from evidence ๐Ÿงช

์ œ์‹œ๋œ ๊ทผ๊ฑฐ์—์„œ ๊ฒฐ๋ก ์ด ์ถฉ๋ถ„ํžˆ ๋„์ถœ๋˜์ง€ ์•Š์œผ๋ฏ€๋กœ ํƒ€๋‹น์„ฑ์ด ์•ฝํ•˜๋‹ค.
The validity is weak because the conclusion is not sufficiently drawn from the presented evidence. โš–๏ธ
Notes: ์ œ์‹œ๋˜๋‹ค means โ€œto be presented,โ€ ์ถฉ๋ถ„ํžˆ means โ€œsufficiently,โ€ and ๋„์ถœ๋˜๋‹ค means โ€œto be derived or drawn.โ€

๐Ÿงฉ General Formation Rule

This is a vocabulary-and-reading skill lesson, so there is no conjugation exception to memorize. Instead, use this reading formation rule:
Argument consistency check = claim + premise + evidence + conclusion + condition check
  1. Find the ์ฃผ์žฅ (claim).
  1. Identify the ์ „์ œ (premise or assumption).
  1. Check the ๊ทผ๊ฑฐ (reason/evidence).
  1. Compare the ๊ฒฐ๋ก  (conclusion).
  1. Ask whether any condition, exception, or wording creates ๋ชจ์ˆœ (contradiction). ๐Ÿงญ
Useful sentence frames:
  • ์ด ๋…ผ์ฆ์€ ๋…ผ๋ฆฌ์  ์ผ๊ด€์„ฑ์ด ์žˆ๋‹ค. โ†’ This argument has logical consistency.
  • ์ด ์ฃผ์žฅ์€ ์•ž์˜ ์ „์ œ์™€ ๋ชจ์ˆœ๋œ๋‹ค. โ†’ This claim contradicts the earlier premise.
  • ๊ทผ๊ฑฐ๊ฐ€ ๋ถ€์กฑํ•˜์—ฌ ๊ฒฐ๋ก ์˜ ํƒ€๋‹น์„ฑ์ด ์•ฝํ•˜๋‹ค. โ†’ The conclusionโ€™s validity is weak because the evidence is insufficient.
  • ์˜ˆ์™ธ ์กฐ๊ฑด์ด ๋ช…ํ™•ํ•˜์—ฌ ๋ชจ์ˆœ ๋ถ€์žฌ๊ฐ€ ํ™•๋ณด๋œ๋‹ค. โ†’ The absence of contradiction is secured because the exception condition is clear.

๐Ÿ“š Cross-check note

The vocabulary and usage in this lesson were cross-checked against National Institute of Korean Language resources at korean.go.kr, including usage around ๋…ผ์ฆ, ํƒ€๋‹น์„ฑ, ์ผ๊ด€์„ฑ, and academic writing evaluation language. โœ…

๐Ÿชž Synonym Alert

  • ๋…ผ๋ฆฌ์  ์ผ๊ด€์„ฑ โ†’ logical consistency; common in academic analysis and evaluation writing.
  • ์ผ๊ด€์„ฑ โ†’ consistency; broader and can describe behavior, policy, tone, or logic.
  • ๋ชจ์ˆœ ๋ถ€์žฌ โ†’ absence of contradiction; formal and analytical.
  • ์•ž๋’ค๊ฐ€ ๋งž๋‹ค โ†’ to make sense, to be coherent; everyday expression.
  • ํƒ€๋‹น์„ฑ โ†’ validity or reasonableness; formal, academic, and policy-related.
  • ์„ค๋“๋ ฅ โ†’ persuasiveness; focuses on how convincing the argument feels, not only whether it is logically valid.

โš ๏ธ Pitfalls to Dodge

  • โŒ ๋…ผ๋ฆฌ์  ์ผ๊ด€์„ฑ = โ€œthe argument is trueโ€ โ†’ โœ… It means the parts do not contradict each other; truth is a separate question. ๐Ÿงญ
  • โŒ ํƒ€๋‹น์„ฑ = โ€œI personally agreeโ€ โ†’ โœ… It means the conclusion is reasonably supported by the premises. โš–๏ธ
  • โŒ ์˜ˆ์™ธ always creates ๋ชจ์ˆœ โ†’ โœ… A clearly limited exception can preserve consistency. ๐Ÿ”
  • โŒ A fancy connector like ๋”ฐ๋ผ์„œ proves the logic โ†’ โœ… Connectors signal reasoning, but the evidence still has to support the conclusion. ๐Ÿ”—
  • โŒ Hidden assumptions do not matter โ†’ โœ… A hidden ์ „์ œ can quietly carry the whole argument like a tiny forklift. ๐Ÿ—๏ธ
๐ŸŽ‰ Once you can separate ๋ชจ์ˆœ, ์ „์ œ, and ํƒ€๋‹น์„ฑ, academic Korean arguments become less like fog and more like a map. ๐Ÿ—บ๏ธ
ย 
Try this exercise
Instructions: Read each short Korean argument and choose the best missing analysis term. Say the completed sentence aloud, then open the Answer toggle to check the reasoning. ๐Ÿง 
1. ์ฃผ์žฅ๊ณผ ๊ฒฐ๋ก ์ด ์„œ๋กœ ๋งž์ง€ ์•Š์œผ๋ฏ€๋กœ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด ๋ฐœ์ƒํ•œ๋‹ค.
The claim and conclusion do not match each other, so a contradiction occurs. ๐Ÿ’ฅ
Answer
๋ชจ์ˆœ โ€” The sentence says the parts do not match, so the problem is contradiction.
2. ๊ทผ๊ฑฐ๊ฐ€ ๊ฒฐ๋ก ์„ ์ถฉ๋ถ„ํžˆ ๋’ท๋ฐ›์นจํ•˜๋ฏ€๋กœ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด ๋†’๋‹ค.
The evidence sufficiently supports the conclusion, so the validity is high. โš–๏ธ
Answer
ํƒ€๋‹น์„ฑ โ€” When support and conclusion match well, the argument has stronger validity.
3. ์ด ๋…ผ์ฆ์€ ์•ž๋’ค๊ฐ€ ๋งž์•„ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์„ ์œ ์ง€ํ•œ๋‹ค.
This argument makes sense from beginning to end, so it maintains logical consistency. ๐Ÿงญ
Answer
๋…ผ๋ฆฌ์  ์ผ๊ด€์„ฑ โ€” ์•ž๋’ค๊ฐ€ ๋งž๋‹ค means the parts fit together coherently.
4. ๊ฒฐ๋ก ์€ ์ˆจ๊ฒจ์ง„ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์— ์˜์กดํ•˜๊ณ  ์žˆ๋‹ค.
The conclusion depends on a hidden premise. ๐Ÿ”
Answer
์ „์ œ โ€” A hidden starting assumption is a premise.
5. ์˜ˆ์™ธ ์กฐ๊ฑด์ด ๋ถ„๋ช…ํ•˜๋ฏ€๋กœ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๊ฐ€ ํ™•๋ณด๋œ๋‹ค.
Because the exception condition is clear, absence of contradiction is secured. ๐Ÿ”
Answer
๋ชจ์ˆœ ๋ถ€์žฌ โ€” A clearly limited exception can prevent contradiction.
6. ์ž๋ฃŒ๊ฐ€ ๋ถ€์กฑํ•œ๋ฐ ๊ฒฐ๋ก ์ด ๋„ˆ๋ฌด ๊ฐ•ํ•˜๋ฏ€๋กœ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด ์•ฝํ•˜๋‹ค.
The data is insufficient but the conclusion is too strong, so the validity is weak. ๐Ÿ“Š
Answer
ํƒ€๋‹น์„ฑ โ€” Weak support for a strong conclusion weakens validity.
7. ๋‘ ์ฃผ์žฅ์ด ๋™์‹œ์— ์ฐธ์ผ ์ˆ˜ ์—†๊ธฐ ๋•Œ๋ฌธ์— ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด๋ผ๊ณ  ๋ณผ ์ˆ˜ ์žˆ๋‹ค.
Because the two claims cannot both be true at the same time, it can be seen as a contradiction. โš”๏ธ
Answer
๋ชจ์ˆœ โ€” Claims that cannot both be true create contradiction.
8. ๊ทผ๊ฑฐ์™€ ๊ฒฐ๋ก ์˜ ์—ฐ๊ฒฐ ๊ด€๊ณ„๋ฅผ ๋”ฐ์ง€๋Š” ๊ณผ์ •์ด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด๋‹ค.
The process of examining the connection between evidence and conclusion is argumentation. ๐Ÿงฑ
Answer
๋…ผ์ฆ โ€” Argumentation links claims, reasons, and conclusions.
9. ๊ด‘๊ณ ๊ฐ€ ๋งŽ๋‹ค๋Š” ์‚ฌ์‹ค๋งŒ์œผ๋กœ ํ’ˆ์งˆ์ด ์ตœ๊ณ ๋ผ๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์„ ๋‚ด๋ฆด ์ˆ˜๋Š” ์—†๋‹ค.
One cannot draw the conclusion that quality is the best only from the fact that there are many advertisements. ๐Ÿ“บ
Answer
๊ฒฐ๋ก  โ€” The sentence discusses what judgment can or cannot be drawn.
10. ์ •์ฑ…์˜ ํšจ๊ณผ๋ฅผ ์ฃผ์žฅํ•˜๋ ค๋ฉด ์ถฉ๋ถ„ํ•œ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๊ฐ€ ํ•„์š”ํ•˜๋‹ค.
To argue for a policyโ€™s effect, sufficient evidence is needed. ๐Ÿ“‘
Answer
๊ทผ๊ฑฐ โ€” Evidence or reasons support the claim.
๐Ÿ“š
Vocabulary Box
  • ๋…ผ์ฆ โ†’ argumentation; reasoning process
  • ์ฃผ์žฅ โ†’ claim
  • ๊ทผ๊ฑฐ โ†’ evidence; reason
  • ๊ฒฐ๋ก  โ†’ conclusion
  • ์ „์ œ โ†’ premise; assumption
  • ๋ชจ์ˆœ โ†’ contradiction
  • ๋ชจ์ˆœ ๋ถ€์žฌ โ†’ absence of contradiction
  • ๋…ผ๋ฆฌ์  ์ผ๊ด€์„ฑ โ†’ logical consistency
  • ํƒ€๋‹น์„ฑ โ†’ validity; reasonableness
  • ํ™•๋ณด๋˜๋‹ค โ†’ to be secured
  • ๋’ท๋ฐ›์นจํ•˜๋‹ค โ†’ to support
Tips ๐Ÿ’ก
  • ๋ชจ์ˆœ is a clash.
  • ํƒ€๋‹น์„ฑ is support quality.
  • ์ „์ œ is the starting assumption.

๐Ÿš€
Want more reps? The Practice Hub below will turn your logic goggles into reading superpowers. ๐Ÿ•ถ๏ธ
ย 
๐Ÿ“ฆ
๐ŸŽฏ Practice Hub โ€” The Logical Consistency of Arguments
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Welcome to your argument-consistency gym. ๐Ÿ‹๏ธโ€โ™€๏ธ Here youโ€™ll practice identifying ๋…ผ์ฆ, spotting ๋ชจ์ˆœ, separating ๋…ผ๋ฆฌ์  ์ผ๊ด€์„ฑ from ํƒ€๋‹น์„ฑ, and catching hidden ์ „์ œ before they sneak away in tiny academic sneakers. ๐Ÿ‘Ÿ
ย 
๐Ÿ”Š Audio reminder: Use
Korean Helper Widgets
Korean Helper Widgets
whenever you want to hear a term or full sentence.
ย 
๐Ÿ“ Instructions: Complete each sentence or choose the best analysis term. Read the Korean line carefully, decide what role the missing word plays in the argument, then open the Answer toggle to check the logic.
ย 

Exercise 1 โ€” Core Vocabulary Matching ๐Ÿงฉ

A. ์ฃผ์žฅ์„ ์ด์œ ๋กœ ๋’ท๋ฐ›์นจํ•˜๋Š” ๊ณผ์ •์€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด๋‹ค.
The process of supporting a claim with reasons is argumentation. ๐Ÿงฑ
Answer
๋…ผ์ฆ โ€” The sentence defines the reasoning process that connects a claim and reasons.
B. ๋…ผ์ฆ์˜ ์ถœ๋ฐœ์ ์ด ๋˜๋Š” ์ƒ๊ฐ์€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด๋‹ค.
The idea that becomes the starting point of an argument is a premise. ๐Ÿšช
Answer
์ „์ œ โ€” A premise is the starting assumption or base of the reasoning.
C. ์ฃผ์žฅ์„ ๋’ท๋ฐ›์นจํ•˜๋Š” ์ด์œ ๋‚˜ ์ž๋ฃŒ๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด๋‹ค.
The reason or data that supports a claim is evidence. ๐Ÿ“‘
Answer
๊ทผ๊ฑฐ โ€” ๊ทผ๊ฑฐ supports a claim or conclusion.
D. ๋…ผ์ฆ์„ ํ†ตํ•ด ๋งˆ์ง€๋ง‰์— ์ด๋ฅด๋Š” ํŒ๋‹จ์€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด๋‹ค.
The judgment reached at the end through argumentation is a conclusion. ๐Ÿ
Answer
๊ฒฐ๋ก  โ€” A conclusion is the final judgment reached through reasoning.
E. ๋‘ ์ฃผ์žฅ์ด ๋™์‹œ์— ์ฐธ์ผ ์ˆ˜ ์—†์œผ๋ฉด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด ์ƒ๊ธด๋‹ค.
If two claims cannot both be true at the same time, a contradiction occurs. โš”๏ธ
Answer
๋ชจ์ˆœ โ€” Incompatible claims create contradiction.
F. ์ฃผ์žฅ๋“ค์ด ์„œ๋กœ ์ถฉ๋Œํ•˜์ง€ ์•Š๋Š” ์ƒํƒœ๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด๋‹ค.
The state in which claims do not conflict with each other is absence of contradiction. ๐Ÿ•Š๏ธ
Answer
๋ชจ์ˆœ ๋ถ€์žฌ โ€” No clash among claims means absence of contradiction.
G. ์•ž๋’ค์˜ ์ƒ๊ฐ์ด ์–ด๊ธ‹๋‚˜์ง€ ์•Š๋Š” ์„ฑ์งˆ์€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด๋‹ค.
The quality of ideas not clashing from beginning to end is logical consistency. ๐Ÿงญ
Answer
๋…ผ๋ฆฌ์  ์ผ๊ด€์„ฑ โ€” ์•ž๋’ค๊ฐ€ ์–ด๊ธ‹๋‚˜์ง€ ์•Š๋‹ค points to consistency.
H. ๊ทผ๊ฑฐ๊ฐ€ ๊ฒฐ๋ก ์„ ์ œ๋Œ€๋กœ ์ง€์ง€ํ•˜๋Š” ์ •๋„๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด๋‹ค.
The degree to which evidence properly supports a conclusion is validity. โš–๏ธ
Answer
ํƒ€๋‹น์„ฑ โ€” Validity concerns whether the reasoning supports the conclusion.
I. ์ƒํ™ฉ์„ ์ œํ•œํ•˜์—ฌ ๋ชจ์ˆœ์„ ํ”ผํ•˜๊ฒŒ ํ•˜๋Š” ๋ง์€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ ์กฐ๊ฑด์ด๋‹ค.
A phrase that limits the situation and helps avoid contradiction is an exception condition. ๐Ÿ”
Answer
์˜ˆ์™ธ โ€” A clear exception condition can prevent a rule from contradicting itself.
J. ์ฝ๋Š” ์‚ฌ๋žŒ์ด ์ง์ ‘ ์ฐพ์•„์•ผ ํ•˜๋Š” ์ „์ œ๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ ์ „์ œ์ด๋‹ค.
A premise that the reader must find directly is a hidden premise. ๐Ÿ•ต๏ธ
Answer
์ˆจ๊ฒจ์ง„ โ€” A hidden premise is not stated openly but supports the conclusion.
๐Ÿ“š
Vocabulary Box
  • ๋…ผ์ฆ โ†’ argumentation
  • ์ฃผ์žฅ โ†’ claim
  • ์ด์œ  โ†’ reason
  • ์ž๋ฃŒ โ†’ data; material
  • ๊ทผ๊ฑฐ โ†’ evidence; support
  • ๊ฒฐ๋ก  โ†’ conclusion
  • ์ „์ œ โ†’ premise
  • ๋ชจ์ˆœ โ†’ contradiction
  • ๋ชจ์ˆœ ๋ถ€์žฌ โ†’ absence of contradiction
  • ๋…ผ๋ฆฌ์  ์ผ๊ด€์„ฑ โ†’ logical consistency
  • ํƒ€๋‹น์„ฑ โ†’ validity
  • ์˜ˆ์™ธ โ†’ exception
  • ์ˆจ๊ฒจ์ง„ โ†’ hidden
Tip ๐Ÿ’ก Match each term to its job: starting point, support, ending judgment, clash, or support quality.
ย 

Exercise 2 โ€” Premise, Evidence, Conclusion ๐Ÿ”

A. ๋„์„œ๊ด€ ์ด์šฉ ์‹œ๊ฐ„์ด ๋Š˜๋ฉด ๋…์„œ๋Ÿ‰๋„ ๋Š˜์–ด๋‚œ๋‹ค๋Š” ๋ง์€ ์ด ๋…ผ์ฆ์˜ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด๋‹ค.
The statement that reading volume increases if library hours increase is the premise of this argument. ๐Ÿ“š
Answer
์ „์ œ โ€” It is the starting assumption that the argument depends on.
B. ์‹คํ—˜ ๊ฒฐ๊ณผ๊ฐ€ ์ฃผ์žฅ์„ ๋’ท๋ฐ›์นจํ•˜๋ฏ€๋กœ ์ค‘์š”ํ•œ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๊ฐ€ ๋œ๋‹ค.
Because the experiment result supports the claim, it becomes important evidence. ๐Ÿงช
Answer
๊ทผ๊ฑฐ โ€” Experiment results can serve as evidence or support.
C. ์—ฌ๋Ÿฌ ์ด์œ ๋ฅผ ์ข…ํ•ฉํ•˜์—ฌ ๋งˆ์ง€๋ง‰์— ๋‚ด๋ฆฐ ํŒ๋‹จ์€ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด๋‹ค.
The judgment made at the end after combining several reasons is a conclusion. ๐Ÿงบ
Answer
๊ฒฐ๋ก  โ€” The final judgment after reasoning is the conclusion.
D. ๋ณด๊ณ ์„œ๋Š” ์ž๋ฃŒ๊ฐ€ ๋ถ€์กฑํ•˜๋ฏ€๋กœ ์ •์ฑ… ํ™•๋Œ€๋ฅผ ๋ณด๋ฅ˜ํ•ด์•ผ ํ•œ๋‹ค๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์„ ์ œ์‹œํ–ˆ๋‹ค.
The report presented the conclusion that policy expansion should be postponed because the data is insufficient. ๐Ÿ—‚๏ธ
Answer
๊ฒฐ๋ก  โ€” ๋ณด๋ฅ˜ํ•ด์•ผ ํ•œ๋‹ค is the final judgment being presented.
E. ์‘๋‹ต์ž ์ˆ˜๊ฐ€ ๋งŽ๋‹ค๋Š” ์‚ฌ์‹ค์€ ์„ค๋ฌธ ๊ฒฐ๊ณผ๋ฅผ ๋ฏฟ์„ ๋งŒํ•˜๊ฒŒ ํ•˜๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด๋‹ค.
The fact that there are many respondents is evidence that makes the survey result more trustworthy. ๐Ÿ“Š
Answer
๊ทผ๊ฑฐ โ€” A large respondent count supports the survey result.
F. ๊ฐ€๊ฒฉ์ด ๋‚ฎ์•„์ง€๋ฉด ์ˆ˜์š”๊ฐ€ ๋Š˜์–ด๋‚œ๋‹ค๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๊ฐ€ ๋งž์•„์•ผ ๊ฒฐ๋ก ๋„ ์„ค๋“๋ ฅ์„ ์–ป๋Š”๋‹ค.
The premise that demand increases if price decreases must be right for the conclusion to become persuasive. ๐Ÿท๏ธ
Answer
์ „์ œ โ€” The conclusion depends on this starting assumption.
G. ๋…ผ๋ฌธ์€ ๊ธฐ์กด ์—ฐ๊ตฌ๋ฅผ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋กœ ์‚ผ์•„ ์ƒˆ๋กœ์šด ์ฃผ์žฅ์„ ์ „๊ฐœํ–ˆ๋‹ค.
The paper used previous studies as evidence and developed a new claim. ๐Ÿ“–
Answer
๊ทผ๊ฑฐ โ€” Previous studies can support a new argument.
H. ํ•„์ž๋Š” ๊ฒฐ๊ตญ ๋„์‹œ ์ˆฒ์„ ๋Š˜๋ ค์•ผ ํ•œ๋‹ค๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์— ๋„๋‹ฌํ–ˆ๋‹ค.
The writer eventually reached the conclusion that urban forests should be expanded. ๐ŸŒณ
Answer
๊ฒฐ๋ก  โ€” ๋„๋‹ฌํ•˜๋‹ค means โ€œto reach,โ€ often used with a conclusion.
I. ์ด ์ฃผ์žฅ์€ ์‹œ๋ฏผ๋“ค์ด ์ •๋ณด๋ฅผ ์ถฉ๋ถ„ํžˆ ์ดํ•ดํ•œ๋‹ค๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋ฅผ ๊น”๊ณ  ์žˆ๋‹ค.
This claim rests on the premise that citizens sufficiently understand the information. ๐Ÿ—ž๏ธ
Answer
์ „์ œ โ€” ๊น”๊ณ  ์žˆ๋‹ค means the assumption sits underneath the claim.
J. ํ†ต๊ณ„ ์ž๋ฃŒ ์—†์ด ๊ฒฐ๋ก ์„ ๋‚ด๋ฆฌ๋ฉด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๊ฐ€ ์•ฝํ•ด์ง„๋‹ค.
If a conclusion is drawn without statistical data, the evidence becomes weak. ๐Ÿ“‰
Answer
๊ทผ๊ฑฐ โ€” Statistical data would be the support; without it, the support is weak.
๐Ÿ“š
Vocabulary Box
  • ๋„์„œ๊ด€ โ†’ library
  • ์ด์šฉ ์‹œ๊ฐ„ โ†’ usage hours
  • ๋…์„œ๋Ÿ‰ โ†’ amount of reading
  • ์‹คํ—˜ ๊ฒฐ๊ณผ โ†’ experiment result
  • ๋ณด๊ณ ์„œ โ†’ report
  • ์ •์ฑ… ํ™•๋Œ€ โ†’ policy expansion
  • ๋ณด๋ฅ˜ํ•˜๋‹ค โ†’ to postpone
  • ์‘๋‹ต์ž ์ˆ˜ โ†’ number of respondents
  • ์ˆ˜์š” โ†’ demand
  • ๋…ผ๋ฌธ โ†’ academic paper
  • ๊ธฐ์กด ์—ฐ๊ตฌ โ†’ previous research
  • ๋„์‹œ ์ˆฒ โ†’ urban forest
  • ํ†ต๊ณ„ ์ž๋ฃŒ โ†’ statistical data
Tip ๐Ÿ’ก Ask: Is this the starting assumption, the support, or the final judgment?
ย 

Exercise 3 โ€” Contradiction Patrol โš”๏ธ

A. ๋ชจ๋“  ํšŒ์˜๋Š” ๋น„๊ณต๊ฐœ๋ผ๊ณ  ํ•˜๋ฉด์„œ ๋ˆ„๊ตฌ๋‚˜ ์ฐธ์„ํ•  ์ˆ˜ ์žˆ๋‹ค๊ณ  ํ•˜๋ฉด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด๋‹ค.
If one says all meetings are private but anyone can attend, it is a contradiction. ๐Ÿšช
Answer
๋ชจ์ˆœ โ€” โ€œPrivateโ€ and โ€œanyone can attendโ€ conflict without a condition.
B. ์ผ๋ฐ˜ ํšŒ์›์€ ์ฐธ์„ํ•  ์ˆ˜ ์žˆ์ง€๋งŒ ์™ธ๋ถ€์ธ์€ ์ œํ•œ๋œ๋‹ค๊ณ  ํ•˜๋ฉด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๊ฐ€ ๊ฐ€๋Šฅํ•˜๋‹ค.
If general members can attend but outsiders are restricted, absence of contradiction is possible. ๐Ÿชช
Answer
๋ชจ์ˆœ ๋ถ€์žฌ โ€” The condition separates members and outsiders, so the claims can fit.
C. ๋ชจ๋“  ๋น„์šฉ์„ ์ค„์—ฌ์•ผ ํ•œ๋‹ค๋ฉด์„œ ๊ด‘๊ณ ๋น„๋ฅผ ๋ฌด์กฐ๊ฑด ๋Š˜๋ฆฌ์ž๊ณ  ํ•˜๋ฉด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด ์ƒ๊ธด๋‹ค.
If one says all costs must be reduced while insisting advertising costs must be increased unconditionally, a contradiction occurs. ๐Ÿ’ธ
Answer
๋ชจ์ˆœ โ€” Reducing all costs conflicts with increasing one cost without qualification.
D. ํ•„์ˆ˜ ์ง€์ถœ์€ ์œ ์ง€ํ•˜๊ณ  ๋‚ญ๋น„์„ฑ ์ง€์ถœ๋งŒ ์ค„์ด์ž๊ณ  ํ•˜๋ฉด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋ฅผ ์œ ์ง€ํ•  ์ˆ˜ ์žˆ๋‹ค.
If one says essential spending should be maintained while only wasteful spending is reduced, logical consistency can be maintained. ๐Ÿงพ
Answer
๋…ผ๋ฆฌ์  ์ผ๊ด€์„ฑ โ€” The distinction between essential and wasteful spending keeps the argument coherent.
E. ๋ชจ๋“  ํ•™์ƒ์—๊ฒŒ ๊ฐ™์€ ๊ธฐ์ค€์„ ์ ์šฉํ•˜์ž๋ฉด์„œ ์ผ๋ถ€ ํ•™์ƒ์„ ์•„๋ฌด ๊ธฐ์ค€ ์—†์ด ์ œ์™ธํ•˜๋ฉด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด๋‹ค.
If one says the same standard should apply to all students but excludes some students with no standard, it is a contradiction. ๐ŸŽ“
Answer
๋ชจ์ˆœ โ€” Same standard for all conflicts with standardless exclusion.
F. ์งˆ๋ณ‘์ด ์žˆ๋Š” ํ•™์ƒ์—๊ฒŒ ๋ณ„๋„ ํ‰๊ฐ€๋ฅผ ์ œ๊ณตํ•œ๋‹ค๊ณ  ํ•˜๋ฉด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ ์กฐ๊ฑด์ด ๋ถ„๋ช…ํ•˜๋‹ค.
If a separate evaluation is provided to students with illness, the exception condition is clear. ๐Ÿฉบ
Answer
์˜ˆ์™ธ โ€” Illness is the limited exception condition.
G. ๊ฐœ์ธ์ •๋ณด๋Š” ๋ณดํ˜ธํ•˜๊ณ  ์—ฐ๊ตฌ ํ†ต๊ณ„๋Š” ๊ณต๊ฐœํ•œ๋‹ค๊ณ  ํ•˜๋ฉด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด ์—†๋‹ค.
If personal information is protected and research statistics are disclosed, there is no contradiction. ๐Ÿ”
Answer
๋ชจ์ˆœ โ€” The complete phrase is โ€œthere is no contradictionโ€; the categories are separated clearly.
H. ๊ทœ์น™์„ ๊ฐ•ํ™”ํ•˜์ž๋ฉด์„œ ๊ทœ์น™ ์œ„๋ฐ˜์„ ๋ชจ๋‘ ํ—ˆ์šฉํ•˜์ž๊ณ  ํ•˜๋ฉด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด ๋ฐœ์ƒํ•œ๋‹ค.
If one says rules should be strengthened while all rule violations should be allowed, a contradiction occurs. ๐Ÿšฆ
Answer
๋ชจ์ˆœ โ€” Strengthening rules conflicts with allowing every violation.
I. ์›์น™๊ณผ ์˜ˆ์™ธ์˜ ๋ฒ”์œ„๋ฅผ ๊ตฌ๋ถ„ํ•˜๋ฉด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๊ฐ€ ํ™•๋ณด๋œ๋‹ค.
If the scope of the principle and exception is distinguished, absence of contradiction is secured. ๐Ÿงญ
Answer
๋ชจ์ˆœ ๋ถ€์žฌ โ€” Clear scope prevents the exception from clashing with the principle.
J. ์•ž ๋ฌธ์žฅ๊ณผ ๋’ค ๋ฌธ์žฅ์ด ๊ฐ™์€ ๊ธฐ์ค€์„ ๋”ฐ๋ฅผ ๋•Œ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด ๋†’์•„์ง„๋‹ค.
When the earlier and later sentences follow the same standard, logical consistency increases. ๐Ÿ“
Answer
๋…ผ๋ฆฌ์  ์ผ๊ด€์„ฑ โ€” Same standard across the argument supports consistency.
๐Ÿ“š
Vocabulary Box
  • ํšŒ์˜ โ†’ meeting
  • ๋น„๊ณต๊ฐœ โ†’ private; closed
  • ์ฐธ์„ํ•˜๋‹ค โ†’ to attend
  • ์ผ๋ฐ˜ ํšŒ์› โ†’ general member
  • ์™ธ๋ถ€์ธ โ†’ outsider
  • ๋น„์šฉ โ†’ cost
  • ๊ด‘๊ณ ๋น„ โ†’ advertising cost
  • ํ•„์ˆ˜ ์ง€์ถœ โ†’ essential spending
  • ๋‚ญ๋น„์„ฑ ์ง€์ถœ โ†’ wasteful spending
  • ๊ธฐ์ค€ โ†’ standard
  • ๋ณ„๋„ ํ‰๊ฐ€ โ†’ separate evaluation
  • ๊ฐœ์ธ์ •๋ณด โ†’ personal information
  • ์—ฐ๊ตฌ ํ†ต๊ณ„ โ†’ research statistics
  • ์›์น™ โ†’ principle
  • ๋ฒ”์œ„ โ†’ scope
Tip ๐Ÿ’ก A condition can rescue an argument from contradiction if the categories are clearly separated.
ย 

Exercise 4 โ€” Validity and Support Quality โš–๏ธ

A. ์œ ๋ช…์ธ์ด ์ถ”์ฒœํ–ˆ๋‹ค๋Š” ์ด์œ ๋งŒ์œผ๋กœ ํšจ๊ณผ๊ฐ€ ์ž…์ฆ๋˜์—ˆ๋‹ค๊ณ  ํ•˜๋ฉด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด ์•ฝํ•˜๋‹ค.
If one says effectiveness is proven only because a celebrity recommended it, the validity is weak. ๐ŸŒŸ
Answer
ํƒ€๋‹น์„ฑ โ€” Celebrity recommendation does not adequately support proven effectiveness.
B. ์ž„์ƒ ์ž๋ฃŒ๊ฐ€ ๊ฒฐ๋ก ์„ ๋’ท๋ฐ›์นจํ•˜๋ฉด ๋…ผ์ฆ์˜ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด ๋†’์•„์ง„๋‹ค.
If clinical data supports the conclusion, the argumentโ€™s validity increases. ๐Ÿงฌ
Answer
ํƒ€๋‹น์„ฑ โ€” Strong relevant evidence improves validity.
C. ์ž๋ฃŒ๊ฐ€ ํ•œ ๋„์‹œ์—์„œ๋งŒ ๋‚˜์™”๋Š”๋ฐ ์ „๊ตญ์— ์ ์šฉํ•˜๋ฉด ๊ฒฐ๋ก ์ด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์„ ๋„˜์–ด์„œ๊ฒŒ ๋œ๋‹ค.
If data came from only one city but is applied nationwide, the conclusion goes beyond the evidence. ๐Ÿ™๏ธ
Answer
๊ทผ๊ฑฐ โ€” The conclusion is broader than what the evidence supports.
D. ํ‘œ๋ณธ ์ˆ˜๊ฐ€ ์ถฉ๋ถ„ํ•˜๋ฉด ์—ฐ๊ตฌ ๊ฒฐ๊ณผ์˜ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๊ฐ€ ๊ฐ•ํ•ด์งˆ ์ˆ˜ ์žˆ๋‹ค.
If the sample size is sufficient, the validity of the research result can become stronger. ๐Ÿ“Š
Answer
ํƒ€๋‹น์„ฑ โ€” Adequate sample size can strengthen support for a conclusion.
E. ๊ฐœ์ธ์˜ ๊ฒฝํ—˜๋งŒ์œผ๋กœ ์‚ฌํšŒ ์ „์ฒด๋ฅผ ํŒ๋‹จํ•˜๋ฉด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๊ฐ€ ๋ถ€์กฑํ•˜๋‹ค.
If society as a whole is judged only from personal experience, the evidence is insufficient. ๐Ÿง
Answer
๊ทผ๊ฑฐ โ€” Personal experience alone is usually too narrow as evidence.
F. ์›์ธ๊ณผ ๊ฒฐ๊ณผ์˜ ์—ฐ๊ฒฐ์ด ๋ถˆ๋ถ„๋ช…ํ•˜๋ฉด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด ๋–จ์–ด์ง„๋‹ค.
If the connection between cause and result is unclear, validity decreases. ๐Ÿ”—
Answer
ํƒ€๋‹น์„ฑ โ€” Weak cause-result connection weakens reasoning quality.
G. ์กฐ์‚ฌ ๋Œ€์ƒ์ด ๋‹ค์–‘ํ•˜๋ฉด ๊ฒฐ๋ก ์„ ์ง€์ง€ํ•˜๋Š” ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๊ฐ€ ๋„“์–ด์ง„๋‹ค.
If the survey subjects are diverse, the evidence supporting the conclusion becomes broader. ๐ŸŒ
Answer
๊ทผ๊ฑฐ โ€” Diversity in subjects can broaden the evidential basis.
H. ๊ฐ์ •์ ์ธ ํ‘œํ˜„์ด ๋งŽ์•„๋„ ์ด์œ ๊ฐ€ ๋ถ€์กฑํ•˜๋ฉด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์€ ๋‚ฎ์„ ์ˆ˜ ์žˆ๋‹ค.
Even if there are many emotional expressions, validity may be low if reasons are insufficient. โค๏ธ
Answer
ํƒ€๋‹น์„ฑ โ€” Emotional force is not the same as valid support.
I. ๊ฒฐ๋ก ์ด ๊ทผ๊ฑฐ์—์„œ ์ž์—ฐ์Šค๋Ÿฝ๊ฒŒ ๋‚˜์˜ค๋ฉด ๏ผฟ๏ผฟ๏ผฟ๏ผฟ์ด ํ™•๋ณด๋œ๋‹ค.
If the conclusion naturally comes from the evidence, validity is secured. ๐ŸŒฑ
Answer
ํƒ€๋‹น์„ฑ โ€” The conclusion follows from the support.
J. ํ†ต๊ณ„๊ฐ€ ์˜ค๋ž˜๋˜์—ˆ๋‹ค๋ฉด ๊ทธ ํ†ต๊ณ„๋ฅผ ๏ผฟ๏ผฟ๏ผฟ๏ผฟ๋กœ ์‚ฌ์šฉํ•  ๋•Œ ์กฐ์‹ฌํ•ด์•ผ ํ•œ๋‹ค.
If the statistics are old, one should be careful when using those statistics as evidence. โณ
Answer
๊ทผ๊ฑฐ โ€” Outdated statistics may not be reliable support.
๐Ÿ“š
Vocabulary Box
  • ์œ ๋ช…์ธ โ†’ celebrity
  • ์ถ”์ฒœํ•˜๋‹ค โ†’ to recommend
  • ํšจ๊ณผ โ†’ effect
  • ์ž…์ฆ๋˜๋‹ค โ†’ to be proven
  • ์ž„์ƒ ์ž๋ฃŒ โ†’ clinical data
  • ํ•œ ๋„์‹œ โ†’ one city
  • ์ „๊ตญ โ†’ the whole country
  • ํ‘œ๋ณธ ์ˆ˜ โ†’ sample size
  • ๊ฐœ์ธ์˜ ๊ฒฝํ—˜ โ†’ personal experience
  • ์‚ฌํšŒ ์ „์ฒด โ†’ society as a whole
  • ์›์ธ๊ณผ ๊ฒฐ๊ณผ โ†’ cause and result
  • ์กฐ์‚ฌ ๋Œ€์ƒ โ†’ survey subject
  • ๊ฐ์ •์ ์ธ ํ‘œํ˜„ โ†’ emotional expression
  • ํ†ต๊ณ„ โ†’ statistics
Tip ๐Ÿ’ก ํƒ€๋‹น์„ฑ rises when evidence is relevant, sufficient, and not stretched too far.
ย 

Exercise 5 โ€” Mixed Mastery + Pitfall Patrol ๐Ÿ›ก๏ธ

A. ์•ž๋’ค๊ฐ€ ๋งž๋Š” ์ฃผ์žฅ์€ ๋ฐ˜๋“œ์‹œ ์‚ฌ์‹ค์ด๋‹ค.
A claim that is internally consistent is necessarily true. ๐Ÿงญ
Answer
โŒ Not necessarily. Logical consistency means no internal contradiction, but the premises can still be factually false.
B. ๊ทผ๊ฑฐ๊ฐ€ ๊ฒฐ๋ก ์„ ์ง€์ง€ํ•˜์ง€ ๋ชปํ•˜๋ฉด ํƒ€๋‹น์„ฑ์ด ์•ฝํ•˜๋‹ค.
If the evidence cannot support the conclusion, validity is weak. โš–๏ธ
Answer
โœ… Correct. ํƒ€๋‹น์„ฑ depends on whether the conclusion follows from the support.
C. ์˜ˆ์™ธ๊ฐ€ ์žˆ์œผ๋ฉด ์–ธ์ œ๋‚˜ ๋ชจ์ˆœ์ด๋‹ค.
If there is an exception, it is always a contradiction. ๐Ÿšจ
Answer
โŒ Not always. A clearly limited ์˜ˆ์™ธ ์กฐ๊ฑด can preserve ๋ชจ์ˆœ ๋ถ€์žฌ.
D. ๋”ฐ๋ผ์„œ๋ผ๋Š” ๋ง์ด ์žˆ์œผ๋ฉด ๋…ผ์ฆ์€ ์ž๋™์œผ๋กœ ํƒ€๋‹นํ•˜๋‹ค.
If the word โ€œthereforeโ€ appears, the argument is automatically valid. ๐Ÿ”—
Answer
โŒ Nope. ๋”ฐ๋ผ์„œ signals a conclusion, but the evidence still has to support it.
E. ์ˆจ๊ฒจ์ง„ ์ „์ œ๊ฐ€ ํ‹€๋ฆฌ๋ฉด ๊ฒฐ๋ก ๋„ ์•ฝํ•ด์งˆ ์ˆ˜ ์žˆ๋‹ค.
If a hidden premise is wrong, the conclusion can also become weak. ๐Ÿ•ต๏ธ
Answer
โœ… Correct. A hidden ์ „์ œ can carry the argument quietly; if it fails, the conclusion weakens.
F. ๋ชจ๋“  ์ •๋ณด๋ฅผ ๊ณต๊ฐœํ•ด์•ผ ํ•œ๋‹ค๋ฉด์„œ ๋ฏผ๊ฐํ•œ ์ •๋ณด๋Š” ๋ณดํ˜ธํ•ด์•ผ ํ•œ๋‹ค๊ณ  ํ•˜๋ฉด ์กฐ๊ฑด ์„ค๋ช…์ด ํ•„์š”ํ•˜๋‹ค.
If one says all information must be disclosed but sensitive information must be protected, condition explanation is needed. ๐Ÿ”
Answer
โœ… Correct. Clarifying categories such as general information versus sensitive information prevents ๋ชจ์ˆœ.
G. ๊ด‘๊ณ ๊ฐ€ ๋งŽ๋‹ค๋Š” ์‚ฌ์‹ค์€ ํ’ˆ์งˆ์ด ์ตœ๊ณ ๋ผ๋Š” ๊ฒฐ๋ก ์˜ ์ถฉ๋ถ„ํ•œ ๊ทผ๊ฑฐ์ด๋‹ค.
The fact that there are many advertisements is sufficient evidence for the conclusion that quality is the best. ๐Ÿ“บ
Answer
โŒ Weak. Advertising frequency is not enough to prove product quality; test results or reliable reviews would be stronger ๊ทผ๊ฑฐ.
H. ์›์น™๊ณผ ์˜ˆ์™ธ์˜ ๋ฒ”์œ„๊ฐ€ ๋ถ„๋ช…ํ•˜๋ฉด ๋…ผ๋ฆฌ์  ์ผ๊ด€์„ฑ์„ ์œ ์ง€ํ•  ์ˆ˜ ์žˆ๋‹ค.
If the scope of the principle and exception is clear, logical consistency can be maintained. ๐Ÿ“
Answer
โœ… Correct. Clear scope allows the rule and exception to fit without contradiction.
I. ๊ฒฐ๋ก ์ด ๊ทผ๊ฑฐ๋ณด๋‹ค ์ง€๋‚˜์น˜๊ฒŒ ๋„“์œผ๋ฉด ํƒ€๋‹น์„ฑ์ด ์•ฝํ•ด์ง„๋‹ค.
If the conclusion is much broader than the evidence, validity becomes weak. ๐ŸŒ
Answer
โœ… Correct. This is a classic overreach problem: the conclusion jumps beyond the evidence.
J. ๋…ผ์ฆ์„ ์ฝ์„ ๋•Œ ์ „์ œ, ๊ทผ๊ฑฐ, ๊ฒฐ๋ก ์„ ๋”ฐ๋กœ ํ™•์ธํ•ด์•ผ ํ•œ๋‹ค.
When reading an argument, one should check the premise, evidence, and conclusion separately. ๐Ÿง 
Answer
โœ… Correct. Separating these parts helps you find ๋ชจ์ˆœ and judge ํƒ€๋‹น์„ฑ.
๐Ÿ“š
Vocabulary Box
  • ์•ž๋’ค๊ฐ€ ๋งž๋‹ค โ†’ to be coherent; to make sense
  • ๋ฐ˜๋“œ์‹œ โ†’ necessarily
  • ์‚ฌ์‹ค โ†’ fact; truth
  • ์ง€์ง€ํ•˜๋‹ค โ†’ to support
  • ์–ธ์ œ๋‚˜ โ†’ always
  • ๋”ฐ๋ผ์„œ โ†’ therefore
  • ์ž๋™์œผ๋กœ โ†’ automatically
  • ํ‹€๋ฆฌ๋‹ค โ†’ to be wrong
  • ๋ฏผ๊ฐํ•œ ์ •๋ณด โ†’ sensitive information
  • ์กฐ๊ฑด ์„ค๋ช… โ†’ condition explanation
  • ํ’ˆ์งˆ โ†’ quality
  • ์ถฉ๋ถ„ํ•œ โ†’ sufficient
  • ์ง€๋‚˜์น˜๊ฒŒ ๋„“๋‹ค โ†’ to be overly broad
  • ๋”ฐ๋กœ ํ™•์ธํ•˜๋‹ค โ†’ to check separately
Tip ๐Ÿ’ก Final patrol: consistency is not truth, exceptions are not automatically contradictions, and connectors are not proof.
ย 
๐ŸŽ‰ Youโ€™ve finished the logic patrol! Now you can read academic Korean arguments with sharper eyes: find the ์ „์ œ, test the ๊ทผ๊ฑฐ, inspect the ๊ฒฐ๋ก , and keep ๋ชจ์ˆœ from sneaking through the side door. ๐Ÿšช