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RE: Sophism #9: 3=2
On the other hand, being the first post of a new user it could have been left unnoticed at all, so perhaps $0.17 is still a fair result.
How can one not appreciate the elegance of a fake yet at first sight convincing proof that 3=2?
Hahaha...
Because it was 16 years ago since I had Cal2 and before that for earlier math, and if it comes up with 3=2, then my dulled brain just says...."so (3a-2a)+(3b-2b) = (3c-2c) can't be" "it is inherently incorrect"
But I'm waiting to hear back from my 'math friend', he will probably do a good job enlightening me! ✌
Well, things cannot be "inherently incorrect" for no reason - the question is why and where exactly is the proof incorrect.
Finding the mistake is a nice little exercise for un-dulling the brain, which provides a small "aha!" discovery moment. Such small discoveries are in fact among the nicest things in math and "real science" in general. Here you get a chance to experience them first hand, without the need to be a real mathematician or a scientist.
Don't ask your "math friends", you'll ruin the point. Try finding the bug yourself - in this particular case it is not too hard - just substitute some arbitrary suitable numbers for a, b, c, step through the proof checking whether each equation holds with these, and you'll see what is happening there.