
Prologue:
In response to requests from my logically-sound readers, you can now find links to Logic 101 (which covers the basic structure of logical arguments) and Logic 103 (which covers the Argumentum ad Populum , Argumentum ad Verecundiam, Petitio Principii, Complex Question, The Ignoratio Elenchi, Fallacies of Ambiguity, The Fallacy of Composition , and Fallacy of Division) here.
Begin Actual Article:
In the first article in this series, Logic 101, we looked at the basic structure of a logical argument. We went over what a logical ARGUMENT is (as differentiated from where you are screaming epithets at your spouse and the neighbors start banging on the floor), what a PROPOSITION is (hint: this is not the same thing as the pick up line you offer to the pretty goth girl in the corner, though in my experience it may get you farther), what PREMISES and CONCLUSIONS are. We also went over the two basic kinds of logical arguments: DEDUCTIVE and INDUCTIVE, how they work, and (in the comment thread) why some folks think inductive reasoning sucks.
Now, as promised, I present to you part two: The Attack of the Evil Fallacies
My Mom (um, with me as translator):
Sometimes it is not easy to recognize that there is something wrong with an argument you are hearing. A deductive argument that may sound persuasive to people but is in fact not valid is called a FALLACY. Oddly enough, people keep on using some of these same arguments every day to try to prove their points, even though the flaws with their arguments are well known.
Let's look at some invalid arguments (fallacies) that you might run into in everyday life.
Many common fallacies are what logicians refer to as fallacies of relevance. These are arguments where the premises are LOGICALLY irrelevant (not related) to the conclusion – although there may be some reason why they have an emotional impact on the listener that makes him tend to assume that the premises and conclusion are related.
Some of the traditional types of irrelevant arguments have been used so often throughout history that they have been given Latin names. But don't let that scare you. Almost nobody knows Latin anymore, so you're not really expected to. Breaking out with the Latin terminology sounds really impressive, though, so it's good to remember if you're into impressing people (like cute goth girls).
For instance:
1. The Argumentum ad Baculum is one that involves an APPEAL TO FORCE. Usually, this sort of fallacy is committed when evidence or rational arguments have already failed. For instance, if you were trying to convince someone at your office not to do something, and he totally ignored your reasoning, you might finally in desperation say something like, "If you do that, the boss will demote you to cleaning toilets, and we'll hang your underwear from the flagpole." On the assumption that the other person really likes his job (and his underwear), then this Argumentum ad Baculum might just get his attention – even though it has absolutely nothing to do with what you were originally arguing about!
2.An Argumentum ad Hominem translates literally as an "argument directed to the man."
There are two sorts of common ways in which people resort to an Argumentum ad Hominem. In one such case, instead of trying to disprove the truth of what has been said, someone attacks the person who made the assertion. For instance, a politician may have made very strong statements about our country and what needs to change. If his opponents can't successfully argue that what the politician is saying is not true, it has become pretty common to try instead to prove that the guy has done something completely unrelated that a lot of people in this country don't approve of. For example, they may try to prove that the politician is gay or has cheated on his wife or that he evaded the draft during the Vietnam war. If they can get enough people angry about things he has done that are totally irrelevant to what he is arguing, then even though what he is arguing is true and can't be shown not to be true, they can still get people to vote against him because the people don't like things he has done previously that are totally irrelevant to the current election issues.
Another example of an Argumentum ad Hominem would be when, instead of arguing against something someone has said, his opponent will say, "And you claim to be a Democrat ... but that is totally contrary to the Democratic Party Platform." In regular life, this would be like you were playing a drinking game with some of your friends, and one friend challenges you to do something that you tell him is dangerous and would hurt you. Since in fact the friend knows you are probably right, instead of arguing that the action is not dangerous, he could turn around and say something like, "And you claim to be adventurous; you're not adventurous, you're a coward." If you were very silly, you could let yourself be persuaded to do what you know you shouldn't by this sort of argument. People do, unfortunately. Or consider a well known book title of a few years ago, Real Men Don't Eat Quiche. What does a statement like this imply? By suggesting that what you are doing is inconsistent with what you want to be, somebody is trying to make you conclude that his or her idea about what you should do is the (only) right way.
3. An Argumentum ad Ignorantiam (argument from ignorance) is a fallacy committed whenever it is argued that a proposition is true simply on the basis that it has not been proved false, or conversely, that it is false because it has not been proved true. For example, someone might argue that there are ghosts, because nobody has ever been able to prove that there are not any. Similarly, people have argued that, since nobody has ever seen (or otherwise proved the existence of) a soul, souls don't exist. However, our ignorance of how to prove or disprove a proposition does not establish either its truth or its falsehood.
4. An Argumentum ad Misericordium (appeal to pity) is a fallacy committed whenever pity is appealed to as a reason that a conclusion should be accepted. For instance, when someone breaks the law, a lawyer might argue that the person should not be punished because he or she is poor, comes from a family with little money, his or her mother has been abandoned by the father and has to work two jobs, etc. These statements may all be true and pity may be justified, but the statements are quite irrelevant to the question of whether the person actually committed the crime and, assuming so, what the prescribed legal punishment for breaking the law is. Likewise the aforementioned cute goth girl might be prevailed upon with the argument that you haven't gotten anyone to sleep with you in six months...but this is both unlikely to succeed and logically unsound.
(just) Me Again:
What we have here are four of the most basic fallacies in common use: Argumentum ad Baculum (an appeal to force), Argumentum ad Hominem (an attack against your opponent, rather than their argument), Argumentum ad Hominem (arguing something is true only on the basis that it has not been proved untrue), and Argumentum ad Misericordium (the pity trick). We all encounter these on a pretty regular basis, especially if you frequent the bar scene or pay attention to politics. I challenge you good folks to note down the best example of any of these fallacies that your hear in the next 24 hours and post it here. I promise to send the person who supplies the best one a lollipop.
In our next exciting episode, we will expose more nefarious fallacies and why they won't help you pick up the goth girl in the corner. Make sure you check it out, because anyone who is a good Newsvine user of course wants to know how to make a logical argument, and if you don't we'll run your underwear up a flagpole and my heart will be broken.
Phhht! You must be a liberal. A good arguement should be like anaerobic exercise. It should leave you red-faced and wondering if those statements about your lineage had any merit to them. How could one possibly manage a democracy without the emotional tethers to lead people by?
I will watch out for those damnant quod non intellegunt. Iam sad to here no one speaks latin any more. Just looking next to me I see a can of "Lover of Cocaine" and when I think of all the latin terms we use and the words inc. into our language, well all I can say is Semper ubi sub ubi "
According to Umberto Eco in The Sign of Three: Dupin, Holmes, Peirce, Holmes didn't use deductive logic, although he (or Conan Doyle) often said so. Holmes instead relied on a reverse form of reasoning which Aristotle (I think) called "Abduction." In adbuction you argue backward from the effect to the cause.
So you abduce from the type of footprint, to what kind of person made it. This calls for some imaginative input which need not be reasonable at all. What's more, although Holmes always got it right, it doesn't always work.
Can someone please start a rant about how ID proponents are just using the "Argumentum ad Ignorantiam" to try and confuse people into following them, so I don't have to?
That would be interesting. And then I could maybe start a rant on why (some) Evolutionists use the same argument to try and confuse people into following them!
But I jst - I have no intention of going down that long and slippery road :-)
Celestina, if you continue to write articles like this your positive feedback score might go down due to you going over people's head.
Secondly, didn't you tell us all already that you are bi-sexual? So what could you possibly know?
Also, no one has ever proven that logic is totally necessary for a good argument, so I contend that it is not.
Lastly, I am very tired after a hard day driving a tractor trailer and you are making my head hurt by teaching us all about logic. What's the point?
How's that?
One argumentum ad hominem for you, plus one argumentum ad misericordium. Pretty good score
for just one comment!
Oops! Almost missed the argumentum ad baculum at the very beginning! Well done!
Phaedrus, I don't want to sound harsh, but we are commenting on a logic article. So how can you, in this context, present the following argument:
Celestina, if you continue to write articles like this your positive feedback score might go down due to you going over people's head.
I mean, make up your mind! This must be a Argumentum ad Verticallis! If it's going to go down, how can it go over people's heads? Unless you think we're all upside down!
:-)
Paddy, methinks you've missed something. ;-)
Ooble, maybe you missed the smiley at the end of my post :-)
This is the Spock problem. On 'Star Trek', Spock would make these statements that would freak Bones out, like 'If we let those hundred people die, it will save thousands.' Spock was big into logic.
If there is a criminal that we are planning on executing because he held up a liquor store and shot the clerk because he didn't want any witnesses, then it is fine to bring his little grey headed mother in and let her appeal for mercy.
Maybe he did have a bad childhood. He probably had a bad childhood.
Even though the evidence and the crime dictate that the criminal be executed, logically. The jury should consider an appeal for pity, emotionally. Everything should be considered.
I know I'm just picking out one of the many points you put foward.
Spock had a Ten Gallon Foil Hat
Point being, that a knowledge of logic is a very helpful thing. But you also have to know when to put it aside.
That is by far one of the best comments I have read so far (and there are a lot of good ones). There is a time and place for logic, and it is a wise man (or woman) who knows when that is and when it isn't. I think one of the reasons arguing pure logic with people elicits the response it does is because logic can be very cold, and humans are warm, emotional creatures. We make a lot of our decisions based on emotion rather than logic and when someone challenges us solely on the logical basis for those decisions it can irritate us.
While it might be nice to speculate how the world would be different if governmental and electoral decisions were based on logic alone, you would also have to discount just about the whole history of organized government and politics to do it. Government and politics are not about logic; they are about power, and power often cares little for logic.
Ooooooooh, pretty goth girls. * drools *
Oh, what's a skater to do? =(
Poetry? Black roses? Skater != Emo. =P
I've always found goths to be a very insular crowd myself. Even when I was going out to goth clubs I only ever ended up talking with the 5 people I already knew there most of the time. I've heard the goth scene in NYC is large enough to be totally divided, where the groups that actually listen to goth don't mix with the groups who listen to industrial and don't mix with the 'vampire' people, etc. Where are you from Celestina? My experiences were all in DC.
Haha, the Cure, hell yeah!
Most of the goths I knew were sort of the cross-over group who went to raves and goth clubs. A lot of the long time goth DJs in DC ended up getting into spinning house and techno at raves, which was kind of weird. I never really dressed up much for going to a goth club, just an old industrial shirt and a collar, sometimes some eyeliner.
Celestina, you say your kid is eight. Would you like to enlighten us on what your style was when
you were, say, 10?
Celestina, definitely encourage your kid in his pirate ways. As the church of the flying spaghetti monster points out, there's an inverse relationship between the falling number of pirates and the rise of global temperatures.
I believe the children are our future. Especially the pirate children :)
Well, Celestina, how very sweet of you to ask! Let me see; it was long ago and far away, and my
recollection of myself at 10 is a little hazy. I seem to remember that I was somewhat chunky,
with stringy hair, and a habit of trying to hide my Mum's bargain basement "finds" for me in the back of my closet in hopes she would forget about them. (I still shudder at the sight of anything chartreuse!) I spent a lot of time alone, or reading, or dreaming daydreams. I was a devout follower, and would espouse almost any cause to stay friends with the girls I ran around with. I hated Girl Scouts, and still hate the idea of weaving mats or any other such "deedy" work, having been born an unreformable manual idiot. I was totally obsessed with the mystery of boys, and I had a boyfriend, but was terribly shocked when he tried to kiss me once. I was given to asking my parents embarrassing questions in front of their friends and/or family. (I'll never forget the look on my Mum's face when I marched into my grandmother's living room and, in front of various aunts, uncles, and whatnots, asked her what "rape" means, explaining that the dictionary definition didn't really explain it to me. She, of course, was of a generation that simply did not discuss sex in "polite" company.) That's about all I remember about when I was ten. However, you will be glad to know that time has improved things greatly. I now understand a number of things I didn't then, including what rape means and that keeping your friends is not nearly as important as having your own opinions. Oh, and the mystery of the opposite sex was exploded long ago; somewhere along the way, I learned that boys are not significantly different from girls, except for having slightly different equipment. Unfortunately, I am still chunky and still have stringy hair. However, all things considered, I like me a lot better than I did when I was ten!
Cassandra- Thank you for your work. Your contributions are making me and I'm sure many others, smarter.
For one reason or another I spend a great deal of time in the streets of the world watching people.
You mention the high maintenance factor inherent in gothicity.
The most astonishing commitment I have witnessed to the vaguely nihilistic, casually overdressed world of radiant inverse optimism was in Perth, Australia, the most isolated city in the world built on the edge of a vast desert. Temperatures hover around 120/45 in the daytime in the summer and to stand about looking unaffected by anything other than your own ennui while wearing large black shin high boots and a buttoned full length black leather trenchcoat in these conditions evoked in me a great respect for the immense effort it so obviously took to simply survive your chosen social position.
I felt the same respect for passing nuns.
My mistake, My comments were directed to you Celestina, I'm lazy, I cut and paste peoples names instead of spelling them and scrolled up and grabbed the first 'C' woman I found.
I hope to slowly improve as I participate more here.
Sorry also Cassandra for potentially bruising your context.
No problem, cowbow. I find it most flattering to be confused with Celestina!
Thank you for this. I like to read about fallacies, because I can never seem to remember what they are called when I encounter them, and one of these days, if I read about them often enough, the names are bound to stick.
But I would like to talk a bit about your "pity" example. It seems to me that the example you use presumes that the purpose of the legal proceeding is to determine points of fact - namely the factual truth regarding the guilt or innocence of the person on trial.
But if one is to presume instead that the purpose of a trial is instead to accomplish justice, then a juror might very well consider pity arguments and elect to find a defendent not guilty simply because a guilty verdict does not serve the interests of justice.
Other non-point-of-fact things that a juror might consider include the likely severity of the sentence to be handed down in the case of a guilty verdict and the justness of the law itself that has been broken.
Following this logic piece of 'sentencing' is that we should reward the criminal for taking out the clerk at the liquor store, rendering the store closed for a few days. Because in the end, society was a little bit better due to the loss of some drunk drivers, abusive drunks, and so on...
Please note - this has no bearing on my personal ideas about the justice system. I'm just twisting this logic to my own accord.
Oh and PS - Great piece (s).
And let's not forget that there is a humongous loss to society in the death of the clerk.
I certainly understand that from a purely legal perspective, you are right - those considerations are to be taken up in the sentencing phase of the trial.
But one must remember that each citizen has a higher moral obligation than a legal obligation. And to convict someone of a crime, if that person has done nothing wrong - as is the case in most drug cases - is morally reprehensible, regardless of the principles of rule of law, and regardless of the clear legal obligation that a juror may have to determine matters of fact alone.
After all, the purpose of the criminal justice system is to accomplish justice - and to place the specific legal obligations before that purpose in terms of priority is really putting the cart before the horse.
I agree with you, in cases where there is specific harm to another person, in most cases.
Continue, by all means. This is the most fun of any conversation I have joined on Newsvine!
estrauss: I think you are mixing emotion with logic here. As a citizen of the country, you have an
obligation to uphold the laws or fight to get them changed. If every jury decides every case on the
basis of this particular jury's conception of justice, rather than on a basis of whether or not the person
broke the law, then nothing but total chaos could result. The laws would not be worth the paper on
which they are written. On the other hand, as Celestina has pointed out several times, there is nothing to keep a jury from letting their conceptions of justice and fairness influence their sentencing recommendation.
There is a doctrine called jury nullification that opposes this point of view. The point of jury nullification is that if a law is grossly unjust, jurors can simply refuse to convict in those cases, with the eventual effect that the cases stop being brought.
From wikipedia:
Jury nullification is a jury's refusal to render a verdict according to the law, as instructed by the court, regardless of the weight of evidence presented. Instead, a jury bases its verdict on other grounds. Historically, examples include the perceived unjustness of the law or its application, the race of a party or accuser, or the jury's own prejudices.
Jury nullification is a de facto power of the jury, and is not ordinarily described as a right. The power of jury nullification derives from an inherent quality of most modern common law systems—a general unwillingness to inquire into jurors' motivations during or after deliberations. A jury's ability to nullify the law is further supported by two common law precedents: the prohibition on punishing jury members for their verdict, and the prohibition on retrying criminal defendants after an acquittal (see related topic Double jeopardy).
Jury nullification is the source of much debate. Some maintain that it is an important safeguard of last resort against wrongful imprisonment and government tyranny. Others view it as an abuse of the right to a trial by jury that undermines the law and violates the oath sworn to by jurors. There are fears that nullification could be used to permit violence against unpopular minorities or women. Some argue that jury nullification could be used to nullify important defendants' rights, such as the Fifth Amendment right not to testify or the right of self-defense. (While supporters argue that jury nullification can be used only to acquit and not to convict because a judge must set aside a conviction that is clearly at odds with the law and the facts, the fact that jury verdicts are treated with great deference in United States courts means that the safeguards are not absolute and a jury that dislikes a defendant has the ability to convict an innocent defendant through nullification.)
Nevertheless, few doubt the ability of a jury to nullify the law. Today, there are two primary issues raised by jury nullification.
* First, whether juries can or should be instructed or informed of their power to nullify. * Second, whether a judge may remove jurors "for cause" when they refuse to apply the law as instructed.
I'd personally never convict anyone of breaking any law that I thought was unconstitutional. Realistically this is the only time anyone has any input into the system.
Celestina, what about updating this series of articles with links to the other articles in the series? It would be handy when we're checking back on some details, and are not sure in which of the articles they are.
Good idea, Celestina. Will there be more?
I read your article and it made me very despondent. I just knew. I knew people were going to start thinking while they read my stuff and they would discover that I have been using Hominy ads to convince people of things using Miserably weak arguments. And then I got to thinking if I could just get a little Baccus in them they would Ignore what I have to say.
To tell the truth I thought I was going to have Newsviners picking my politics apart and throwing the pieces all over the place. Then I read the comments to the article and I knew I didn't have a worry in the world. Some of them have ad Nausea.
Wish I had been here when all the fun started. Thanks for the education Celestina. I will go back and read 101.
*pushes her plate of grits over to Celestina's place at the table*
You can have mine, I never could develop a taste for 'em, even after trying to eat them in myriad different configurations for three years. But hush puppies... that's good stuff.
wherever you go in america, you can always find a Denny's
And you consider that a good thing? :|
I seriously tried to like grits... I lived in South Carolina for three years and fit in pretty well (to the point where my sister, SwampQueen, didn't recognize my voice on the phone)... but grits? I tried them every which way anybody ever heard of fixing them, and still... they tasted like sand to me. *shrugs*
I went surf fishing, crabbing, mussel-digging, crawfish-catching... but grits? Never did learn to like them.
mmmmmm Grits, there was a place in Grand Falls, New Brunswick for a while called "Gritz" that basically was denny's with 23972489239 more types of grits. SOOOOOOO good. Not sure if it's still there.
I like my grits thick enough for the spoon to stand up in, and with lots and lots of cheese. Yummy. I hate restaurants that have runny snot looking grits.
When eating grits, the sensation of chewing on sand indicates they're garden-variety, corn grits. When eating grits provides the sensation of enjoying a creamy sort of ambrosia, they're more likely to be hominy grits.
"What's the difference? Whether corn or hominy, maize is maize!"
No need to get emotional. The difference: Hominy is treated corn1.
...the process is called nixtamalization, and removes the germ and the hard outer hull from the kernels, making them more palatable, easier to digest, and easier to process. It also alters the flavor in a way that many consider to be an improvement.
Logical conclusion: When ordering grits, the diner should ascertain which variety is actually on the menu - substandard corn grits or the more delectable hominy grits. Then, the logical fallacy that eating any kind of grits is akin to eating sand is somewhat mitigated.
But wait... does exploring the logical fallacy make this argument for distinction a valid argument or an ad hominem? *snicker*
1 en. wikipedia .org/wiki/Hominy
the grits and hush puppies divertion is making me both hungry and homesick.
aine ... catfish corner! MLK and Cherry. Tell Woodie (if he's there) that Kathy the knee-impaired motorcyclist sent you. :) [Woodie and I met in physical therapy in ... 92?]
Logical fallacies are a plight in American discourse. This is an important series. I am sorry I missed it the first time. Thanks, C!
This is great stuff, very well done. You should join my group: Logic on the Vine.
Keep up the great work!
I'm glad you've joined. I'm hoping to have an army of logical thinkers to denounce the fallacies of other viners, the media and politicians. You never know, we may convince some people that logical thinking is the way to go.
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