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Discussion Starter · #1 ·
A = B<br><br>
B = C<br><br>
A != C<br><br><br><br><br><br>
How is this possible?<br><br>
Post your answer/guess and how long it took to figure it out!
 

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Discussion Starter · #2 ·
Oh yeah, this was a problem on <i>lateral thinking</i> proposed in my creative design course.
 

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Ok, i'll bite.<br><br><br><br>
i hate math but this looks like something I have come across in my programming classes once.<br><br><br><br>
A = B<br><br>
B = C<br><br>
A != C<br><br><br><br><br><br>
How is this possible?<br><br>
Post your answer/guess and how long it took to figure it out!<br><br><br><br>
My answer/guess is that since we don't know the values of A or B or C. We can say that A != C. We can prove by plugging in values.<br><br><br><br>
Suppose B = 1, and C= 2. I don't think it matters what A is.<br><br><br><br>
A = 1<br><br>
1 = 2 (which is not true)<br><br>
1 != 2 (which is true)<br><br><br><br>
Ha, I am probably wrong but I guessed. Give me points for that! <img alt="" class="inlineimg" src="/images/smilies/smiley.gif" style="border:0px solid;" title=":)"> It has been awhile since I have done this stuff. ( i know I have done it before though) <img alt="" class="inlineimg" src="/images/smilies/smiley.gif" style="border:0px solid;" title=":)"><br><br><br><br>
Hmm, I just sort looked at it and came up with my answer/guess. Maybe a minute?
 

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I haven't been awake long enough to work it out. Although I think Im too much of a maths bimbo to suss it out anyway <img alt="" class="inlineimg" src="/images/smilies/dunce.gif" style="border:0px solid;" title=":dunce:">
 

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"A is B" would have to be a false major premise. Am I right? This took me a few minutes.<br><br><br><br>
I'll just re-post this.<br><br><br><br>
For example:<br><br>
All whales are fish. (A is B)<br><br>
All fish are non-mammals. (B is C)<br><br>
Therefore, whales are non-mammals. (We know this is false, A!=C)<br><br><br><br>
In this case, the major premise, A is B, is false. This gives us A!=C.
 

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<div class="quote-container"><span>Quote:</span>
<div class="quote-block">Originally Posted by <strong>kali</strong> <a href="/forum/post/0"><img alt="View Post" class="inlineimg" src="/img/forum/go_quote.gif" style=""></a><br><br>
I think Im too much of a maths bimbo to suss it out anyway <img alt="" class="inlineimg" src="/images/smilies/dunce.gif" style="border:0px solid;" title=":dunce:"></div>
</div>
<br><br><br>
Don't worry your pretty little head about it <img alt="" class="inlineimg" src="/images/smilies/yes.gif" style="border:0px solid;" title=":yes:"><br><br><br><br><br><br><br><br><br><br><br><br>
Actually, I've got no idea either <img alt="" class="inlineimg" src="/images/smilies/tongue3.gif" style="border:0px solid;" title=":p">
 

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The '=' sign made me think - A is EQUAL to B. Like with two numbers.<br><br><br><br>
Oh well, I gave it a shot. <img alt="" class="inlineimg" src="/images/smilies/grin.gif" style="border:0px solid;" title=":D">
 

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I'm not sure what 'lateral thinking' is, but this is the best I can come up with in about half an hour.<br><br><br><br>
I assume by "A = B" does not mean actually the value of A is the value of B.<br><br><br><br>
So I could say this:<br><br>
The value of A is "a dog"<br><br>
The value of B is "a type of mammal"<br><br>
The value of C is "a cat"<br><br><br><br>
So another way to put:<br><br>
A = B<br><br>
B = C<br><br>
A != C<br><br><br><br>
Is<br><br>
A dog is a type of mammal.<br><br>
A type of mammal is a cat.<br><br>
A dog is not a cat.<br><br><br><br>
That's the best I can come up with this late.
 

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<div class="quote-container"><span>Quote:</span>
<div class="quote-block">Originally Posted by <strong>Seb_0810</strong> <a href="/forum/post/0"><img alt="View Post" class="inlineimg" src="/img/forum/go_quote.gif" style=""></a><br><br>
They all equal one.<br><br><br><br>
a=b or 1=1<br><br>
b=c or 1=1<br><br><br><br>
and a!=c or 1!=1</div>
</div>
<br><br><br>
I don't think troub is using ! to represent a factorial. Rather he is using != to mean 'not equal to'. Crazy programming notation is confusing people, troub! <img alt="" class="inlineimg" src="/images/smilies/tongue3.gif" style="border:0px solid;" title=":p"><br><br><br><br>
yeah I have no idea. I'll think about it though.
 

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Discussion Starter · #12 ·
<div class="quote-container"><span>Quote:</span>
<div class="quote-block">Originally Posted by <strong>nogardsram</strong> <a href="/forum/post/0"><img alt="View Post" class="inlineimg" src="/img/forum/go_quote.gif" style=""></a><br><br><br><br><br>
A dog is a type of mammal.<br><br>
A type of mammal is a cat.<br><br>
A dog is not a cat.<br></div>
</div>
<br><br><br>
that is (well, similar to) what I came up with in class. <img alt="" class="inlineimg" src="/images/smilies/smiley.gif" style="border:0px solid;" title=":)">
 

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Discussion Starter · #13 ·
<div class="quote-container"><span>Quote:</span>
<div class="quote-block">Originally Posted by <strong>nogardsram</strong> <a href="/forum/post/0"><img alt="View Post" class="inlineimg" src="/img/forum/go_quote.gif" style=""></a><br><br>
I'm not sure what 'lateral thinking' is,</div>
</div>
<br><br><br>
from Wikipedia:<br><br>
"Techniques that apply lateral thinking to problems are characterised by the shifting of thinking patterns away from entrenched or predictable thinking to new or unexpected ideas."<br><br><br><br>
Basically thinking simply and outside the box.<br><br>
We automatically start thinking of numbers when we see the variables a,b,c,etc. that we miss that it could be possible that the variables could easily represent other things entirely.<br><br><br><br><br><br>
There was an episode on Mythbusters that was a great example of lateral thinking. It involved the task of dropping an egg from the rooftop to the sidewalk below without it breaking, and only using items from a certain list. One of the guys built a complicated device with all the items, some sort of bungee styrofoam cup thingie that didn't work to great. The other guy just tied the string and tape around the egg and lowered it slowly up to a few centimeters above the ground, and dropped it from there.<br><br><br><br>
Or once I tried to solve a cryptogram by representing everything with numbers and basically spent a few hours on it - when the whole time it was just each letter was shifted a few to the right (or something as simple).
 
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