Argument-Logic YouTube Lecture Handouts

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Argument-Logic YouTube Lecture Handouts

WHAT is ARGUMENT?

  • Premise: Statement used as evidence for conclusion.
  • Conclusion: Statement supported by atleast one premise.
  • Argument: Atleast one premise accompanied with a conclusion.

Propositional Utterances

  • Either true or false statement
  • Door is Black
  • Cherry is a cute baby.
  • Sheenu is Cherry՚s Mother.

Non-Propositional Utterances

  • Question – Who am I?
  • Command – Do it!
  • Expression – Three Cheers!

Identifying Premise & Conclusion

  • Premise Indicator

(Conclusion) and (Premise)

  • Sunita is not going to school since she is not well.

Premise Indicators

  • Since
  • For
  • Because
  • Given that
  • For the reason that
  • In view of the fact that

Identifying Premise & Conclusion

  • Conclusion Indicator

(Premise) (Conclusion)

  • Sunita studied a lot, therefore she secured good marks
  • Sunita is not well so she is not going to the school.

Conclusion Indicators

  • Therefore
  • Thus
  • Hence
  • So
  • Accordingly
  • For this reason
  • Consequently
  • It follows that

JOINT INFERENCE

1 + 2 | ⇾ 3

1: Cup is made of china clay.

2: China clay is breakable.

3: Cup is made of breakable substance china clay.

INDEPENDENT INFERENCE

1 | ⇾ 3 and 2 | ⇾ 3

1: Pure gold is 24 carat.

2: Most jewelry is made of 22 carat pure gold.

3: Carat explains purity of gold.

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