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# Logic problems please help!

2 replies to this topic

### #1 queenofshire405

queenofshire405

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Posted 22 September 2013 - 04:26 AM

Arguments, Validity, and Soundness

For the following prompts, determine the properties that apply to each prompt (if any). Highlight or put in bold “yes” if the prompt does possess the characteristic listed, and highlight or put in bold font “no” if not.

1. Thanksgiving is coming soon. Therefore, it’s October.

Argument? Yes No

Valid? Yes No

Sound? Yes No

2. Barack Obama is a man. All men are mortal. Therefore Barack Obama is mortal.

Argument? Yes No

Valid? Yes No

Sound? Yes No

Symbolization

Please symbolize the following English sentences into logical notation. Place your answer below each respective question.

3. HANNAH and MIGUEL will volunteer this weekend if and only if CHRIS can’t volunteer this weekend.

4. The SUN is shining if there are no CLOUDS in the sky.

Well-formed-formulas (WFFs)

Determine whether each of the formulae below, individually, are well formed or not. If the formula is well formed, highlight or put “wff” in bold font. If the formula isn’t well formed, put “not a wff” in bold font or highlight it.

5. H & -(-R & M)

WFF Not a WFF

6. S &  (P  N)

WFF Not a WFF

Highlight (using the “highlighter” tool in your word processing program) the main logical operator of the following formula:

- ((G & J) & S)

Edited by queenofshire405, 22 September 2013 - 04:27 AM.

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### #2 fabpig

fabpig

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Posted 23 September 2013 - 02:44 AM

Sorry, Queeniepie,

But not all of us know when Thanksgiving is..

Who Barack Obana is (or care) (to both)

I'm guessing you're fairly young and you've just scanned this in from a  test paper and hoping you'd get an easy answer....

tough tits

• 0

You must not think me necessarily foolish because I am facetious,  nor will I consider you necessarily wise because you are grave.  Sydney Smith.

### #3 akaslickster

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Posted 05 October 2013 - 05:23 PM

I suggest sitting down with parents and asking for similar statements and ask them to explain it to you.

i.e. Brainden is for help and assistance only.

Therefore, Brainden is not expected to give you the answers. YES

Brainden provides some examples that may help. YES

Brainden will help you cheat on homework. NO

It should be common sense, but I gave some facts.

Edited by akaslickster, 05 October 2013 - 05:25 PM.

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The place where peace begins is within oneself. by Slick

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