(Bad)Joke Appreciation Corner
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Null
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I asked my dog what's two minus two. He said nothing.
λ the β-Redex Reducer
β-Redex Reducing Member
In that case your dog would be wrong, because the answer is 0 and 0 is not nothing. In Peano numerals 0 is the base case. There 0=0, 1=S0, 2=SS0; where S is the successor function. If you have nothing instead of 0 then you cannot make a numeral as there will be nothing to apply the successor function to! So nothing and 0 are very different, they are not even the same type. Nothing is of type Maybe x while 0 is of a number type. This makes them not even comparable!
levi
Still fresh, damnit!
0 denotes nothing, no entries of the type of thing you're looking for. Yes, it's not the same type of thing, but so closely related that I think the joke still works (for me at least).
I can not read Arabic, please don't use Arabic Numerals (you insensitive clod*). (* slashdot hommage)
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Confuzzled
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Well, I guess Unicode 0660 is out then, he could use Unicode 1D2E0. Happy?
Null
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levi
Still fresh, damnit!
Hex 660 is also Arabic numerals, as well as containing the number 0 in it's identifier hex string. And unicode 1D2E0 seems to just be 12DE which is a captial B attachment to the next character which you've defined to be 0.
Ok, so one cacaobean is zero and one little pebble is one... yeah, that would work. It's Turing complete and all... wait... there's a stick in there too.
I can count to 40 with 1 hand! (update: up to 432 now! And to 3888 if I also use my arm!) But here's a binary method:
Binary Fingers!
Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. For K-12 kids, teachers and parents.
www.mathsisfun.com
I havent been on xkcd for ages. I liked these:
Confounding Variables
Rapid Test Results
levi
Still fresh, damnit!
You should subscribe to it over RSS. Takes a minute a day to read (or two if you need explainxkcd to explain it to you)
Confuzzled
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U+0660 ARABIC-INDIC DIGIT ZERO: ٠ – Unicode
٠, codepoint U+0660 ARABIC-INDIC DIGIT ZERO in Unicode, is located in the block “Arabic”. It belongs to the Arabic script and is a Decimal Number.
٠ - U+00660 - decodeunicode.org
decodeunicode.org
- U+1D2E0 - decodeunicode.org
decodeunicode.org
There is also a Chinese symbol 'ling' for zero:
U+96F6 CJK UNIFIED IDEOGRAPH-96F6: 零 – Unicode
零, codepoint U+96F6 CJK UNIFIED IDEOGRAPH-96F6 in Unicode, is located in the block “CJK Unified Ideographs”. It belongs to the Han script and is a Other Letter.
零 - U+096F6 - decodeunicode.org
decodeunicode.org
So if you don't want to use 'Arabic' symbols to denote zero, there are other choices that are defined in Unicode, so if you have a typeface that has a symbol for those particular codepoints, you are good to go.
λ the β-Redex Reducer is quite right to distinguish between nothing and zero. Zero has properties that nothing has not: for example, zero is a number. In database usage it an be important to distinguish between zero, null, undefined, the space character, empty, and quite possibly other things.
Ob Joke: Three students observe a man and a women enter an empty building. Shortly afterwards they exit the building with a child. The biology student explains this by saying that obviously they had reproduced. The student of logic explains by saying there must be another entrance. The mathematics student says that obviously there was now -1 children in the building.
Reason for edit: appears to me the criterion -> appears to meet the criterion
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levi
Still fresh, damnit!
Hmm, now I try it again I can get both the captial B addition as U+1d2e and the loaf of bread symbol as U+1d2e0
TeDaDeS
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What do you get when you combine a rhetorical question and a joke?
levi
Still fresh, damnit!
I dunno, is it this thread?
TeDaDeS
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Why can't a hand be 12 inches long?
Because it would be a foot.
Confuzzled
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A joke where the audience already knows the punchline?
Confuzzled
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Ironically, this shows the difference between adding nothing to then end of the string U+1d2e to get U+1d2e and adding zero to the end of the string U+1d2e to get U+1d2e0. Well done! Perhaps you were being too subtle for me to notice your example earlier.
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Because it's 4 inches?
Null
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I think my wife is putting glue on my antique weapons collection. She denies it but I'm sticking to my guns!
Confuzzled
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Why are Italian physicists so bright and so thin?
Because they always start their meals with anti-pasta!
TeDaDeS
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