Assignment 36

#$&*

course mth 151

017. `query 17

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Question: `qQuery 3.6.5 if he didn't have to set up he would be ecstatic.

He's ecstatic. Therefore he doesn't have to set up.Is the argument and valid or invalid and why?

YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY

Your solution: argument is invalid. even though it appears to be an converse statement, it is clear that some of the terms are just false.

confidence rating #$&*: very confident

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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Question: `qQuery 3.6.11 (formerly 3.6.12). This wasn't assigned but you

should be able to analyze it. She uses ecommerce or uses credit. She doesn't use credit. Therefore she uses ecommerce. Is the argument and valid or invalid and why?

YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY

Your solution: valid argument. You are given an either or option, both of which could be possible. If it is not one, then it must be the other.

confidence rating #$&*: very confident

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Given Solution:

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Question: `qQuery 3.6.18 evaluate using the truth table: ~p -> q, p,

therefore -q

YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY

Your solution: False. THis is saying that if p is negative then q is positve and also the converse. The truth table is:

p q ~p ~q

T T F F

T F T F

F T T F

F F T T

confidence rating #$&*: very confident

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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Question: `q3.6.24 evaluate using the truth table: ( (p ^ r) -> (r U q), and (q

^ p), therefore r U p

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Your solution: None

confidence rating #$&*: No confidence. This one is very hard

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Question: `q3.6.30: Christina sings or Ricky isn't an idol. If Ricky isn't an

idol then Britney doesn't win. Britney wins. Therefore Christina doesn't sing.

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Your solution: Britney wins, so Ricky is an idol. If Ricky is an idol then Christina does not sing. The argument is valid.

confidence rating #$&*: very confident

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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Question: `qPrevious version 3.6.30 determine validity: all men are mortal.

Socrates is a man. Therefore Socrates is mortal

YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY

Your solution: valid argument using inductive reasoning

confidence rating #$&*: very confident

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

"

Self-critique (if necessary):

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Self-critique rating:

Assignment 36

#$&*

course mth 151

017. `query 17

*********************************************

Question: `qQuery 3.6.5 if he didn't have to set up he would be ecstatic.

He's ecstatic. Therefore he doesn't have to set up.Is the argument and valid or invalid and why?

YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY

Your solution: argument is invalid. even though it appears to be an converse statement, it is clear that some of the terms are just false.

confidence rating #$&*: very confident

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

*********************************************

Question: `qQuery 3.6.11 (formerly 3.6.12). This wasn't assigned but you

should be able to analyze it. She uses ecommerce or uses credit. She doesn't use credit. Therefore she uses ecommerce. Is the argument and valid or invalid and why?

YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY

Your solution: valid argument. You are given an either or option, both of which could be possible. If it is not one, then it must be the other.

confidence rating #$&*: very confident

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

.............................................

Given Solution:

*********************************************

Question: `qQuery 3.6.18 evaluate using the truth table: ~p -> q, p,

therefore -q

YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY

Your solution: False. THis is saying that if p is negative then q is positve and also the converse. The truth table is:

p q ~p ~q

T T F F

T F T F

F T T F

F F T T

confidence rating #$&*: very confident

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

*********************************************

Question: `q3.6.24 evaluate using the truth table: ( (p ^ r) -> (r U q), and (q

^ p), therefore r U p

YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY

Your solution: None

confidence rating #$&*: No confidence. This one is very hard

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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Question: `q3.6.30: Christina sings or Ricky isn't an idol. If Ricky isn't an

idol then Britney doesn't win. Britney wins. Therefore Christina doesn't sing.

YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY

Your solution: Britney wins, so Ricky is an idol. If Ricky is an idol then Christina does not sing. The argument is valid.

confidence rating #$&*: very confident

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

*********************************************

Question: `qPrevious version 3.6.30 determine validity: all men are mortal.

Socrates is a man. Therefore Socrates is mortal

YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY

Your solution: valid argument using inductive reasoning

confidence rating #$&*: very confident

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

"

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