A Question About Logical Fallacies
Moderator: CameronBornAndBred
- colchar
- PWing School Professor
- Posts: 4120
- Joined: April 8th, 2009, 7:12 pm
- Location: Brampton, Ontario
A Question About Logical Fallacies
I know next to nothing about logical fallacies (I stayed away from Philosophy courses) so I was wondering if someone here might be able to help me. I heard an argument today that I am certain is a logical fallacy of some kind but, as I said, I know little about them so, if I am right and this is a fallacy, can someone please tell me which one it is?
Here is the argument:
Drinking is not illegal. Driving is not illegal. Therefore drinking and driving should not be illegal.
Thanks.
Here is the argument:
Drinking is not illegal. Driving is not illegal. Therefore drinking and driving should not be illegal.
Thanks.
". . . when a man is tired of London, he is tired of life; for there is in London all that life can afford."
— Samuel Johnson
----------
2010 & 2012 CTN NASCAR Fantasy League Champion. No lemurs were harmed in the winning of these titles.
----------
— Samuel Johnson
----------
2010 & 2012 CTN NASCAR Fantasy League Champion. No lemurs were harmed in the winning of these titles.
----------
- CameronBornAndBred
- PWing School Chancellor
- Posts: 16130
- Joined: April 8th, 2009, 7:03 pm
- Location: New Bern, NC
- Contact:
Re: A Question About Logical Fallacies
Only a drunk person could find the logic in that.colchar wrote: Drinking is not illegal. Driving is not illegal. Therefore drinking and driving should not be illegal.
Duke born, Duke bred, cooking on a grill so I'm tailgate fed.
- CathyCA
- PWing School Chancellor
- Posts: 11483
- Joined: April 8th, 2009, 9:38 pm
- Location: Greenville, North Carolina
Re: A Question About Logical Fallacies
One of the desks in the second floor classroom of the Gray Building (Department of Religion) had the following syllogism carved into it. It always brought a smile to my face when I sat at this desk:
God is love.
Love is blind.
Ray Charles is blind.
Therefore, Ray Charles is God.
God is love.
Love is blind.
Ray Charles is blind.
Therefore, Ray Charles is God.
“The invention of basketball was not an accident. It was developed to meet a need. Those boys simply would not play 'Drop the Handkerchief.'”
~ James Naismith
~ James Naismith
- captmojo
- PWing School Endowed Professor
- Posts: 5096
- Joined: April 12th, 2009, 12:20 pm
- Location: It's lonely out in space on such a timeless flight.
Re: A Question About Logical Fallacies
Never drink and drive.
You might run over a bump and spill your drink.
My friend told me his wife drove him to drink.
He lost his license and it was too far to walk to get to the liquor store.
You might run over a bump and spill your drink.
My friend told me his wife drove him to drink.
He lost his license and it was too far to walk to get to the liquor store.
"Backboards? Backboards? I'll show'em what to do with a f%#kin' backboard!"
- bjornolf
- PWing School Professor
- Posts: 4686
- Joined: April 13th, 2009, 1:11 pm
- Location: Southbridge, VA
Re: A Question About Logical Fallacies
Reminds me of one of my favorite Toby Keith songs, "You ain't much fun since I quit drankin'".
Qui invidet minor est...
Let's Go Duke!
- DukieInKansas
- PWing School Endowed Professor
- Posts: 6611
- Joined: May 3rd, 2009, 11:48 pm
- Location: Kansas - scientist's say it's flatter than a pancake - cross it on a bicycle and you won't agree.
Re: A Question About Logical Fallacies
Billy Currington - People Are Crazy - lyrics from chorus: God is great, beer is good and people are crazybjornolf wrote:Reminds me of one of my favorite Toby Keith songs, "You ain't much fun since I quit drankin'".
Life is good!
- YmoBeThere
- PWing School Endowed Professor
- Posts: 6912
- Joined: April 13th, 2009, 7:36 pm
- Location: South Central...Tejas
Re: A Question About Logical Fallacies
Drinking to excess is illegal in many places. Therefore, drinking and driving may be illegal. It may be called a fallacy of accident...but I don't really remember. The conclusion of the statement above is also conditional. So, that makes it difficult to assess.colchar wrote:I know next to nothing about logical fallacies (I stayed away from Philosophy courses) so I was wondering if someone here might be able to help me. I heard an argument today that I am certain is a logical fallacy of some kind but, as I said, I know little about them so, if I am right and this is a fallacy, can someone please tell me which one it is?
Here is the argument:
Drinking is not illegal. Driving is not illegal. Therefore drinking and driving should not be illegal.
Thanks.
Hell, I was an engineer. I don't have a clue...
- bjornolf
- PWing School Professor
- Posts: 4686
- Joined: April 13th, 2009, 1:11 pm
- Location: Southbridge, VA
Re: A Question About Logical Fallacies
There are a lot of ridiculous statements like that. And, as pointed out, drinking to excess, which is really what we're talking about with "drinking and driving" (even if excess is only a few drinks in the driving example), IS illegal. Hence the charge of "drunk in public", one of Ron White's favorites to talk about. ;)
Qui invidet minor est...
Let's Go Duke!
Re: A Question About Logical Fallacies
The fallacy of composition, is what we have here. I think. I could be wrong. Here's the entire list.
Example 7, though, seems to work:
Sodium is dangerous to humans.
Chloride is dangerous to humans.
Therefore, combinations of Sodium and Chloride are dangerous to humans.
We know that humans need (some) salt to live, so the argument is incorrect.
As pointed out above, it's also an overgeneralization. Not all drinking is legal, and not all driving is legal, in fact, one kind of driving that's not legal is driving after too much drinking (or, in North Carolina, after drinking AT ALL if you are under 21 - or is it 18?).
Example 7, though, seems to work:
Sodium is dangerous to humans.
Chloride is dangerous to humans.
Therefore, combinations of Sodium and Chloride are dangerous to humans.
We know that humans need (some) salt to live, so the argument is incorrect.
As pointed out above, it's also an overgeneralization. Not all drinking is legal, and not all driving is legal, in fact, one kind of driving that's not legal is driving after too much drinking (or, in North Carolina, after drinking AT ALL if you are under 21 - or is it 18?).
"And Johnboy is right" - lawgrad91
Re: A Question About Logical Fallacies
BTW, my favorite fallacy is "post hoc ergo propter hoc" - which is what some parents of autistic children are engaging in when they blame the the autism on inoculations. "My kid seemed fine before the shots, so the shots must have caused the autism." Um, no. No it doesn't.
PS - I started this post as an edit, then got a phone call, then couldn't edit anymore. so this isn't blatant PWing.
PS - I started this post as an edit, then got a phone call, then couldn't edit anymore. so this isn't blatant PWing.
"And Johnboy is right" - lawgrad91
- YmoBeThere
- PWing School Endowed Professor
- Posts: 6912
- Joined: April 13th, 2009, 7:36 pm
- Location: South Central...Tejas
Re: A Question About Logical Fallacies
I don't think its discouraged at all.Johnboy wrote:This is blatant PW'ing.
- Rolvix
- Graduate Student at PWing school
- Posts: 1878
- Joined: May 31st, 2009, 8:32 pm
- Location: Leaving Durham -- off to Haiti
Re: A Question About Logical Fallacies
In fact, it seems to be encouraged!YmoBeThere wrote:I don't think its discouraged at all.Johnboy wrote:This is blatant PW'ing.
You get little trophies underneath your name the more you do it
Sadly, I only have one at the moment.
Class of 2014
- Rolvix
- Graduate Student at PWing school
- Posts: 1878
- Joined: May 31st, 2009, 8:32 pm
- Location: Leaving Durham -- off to Haiti
Re: A Question About Logical Fallacies
Just kidding, I have 2. As of two posts ago I guess? :ugeek:
Class of 2014