Division is multiplication by the multiplicative inverse. There is nothing else that it can be. To pretend that there's wiggle room/ambiguity here is unhelpful shading to ludicrous
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Replying to @qntm
math is about formal systems. the post cites at least two other variants that do something else useful with division by 0. it makes the case for why 1/0=0 is useful in some scenarios. why the mockery?
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Replying to @rpjohnst
In a field, division is multiplication by the multiplicative inverse. You can redefine "division" to mean something else if you like but you're probably either no longer working in a field or no longer speaking conventional mathematical English
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Replying to @qntm
absolutely, the post is rather clear on that point- and leaving behind "conventional mathematical English" is a fairly common thing to do but also, to be fair, this is less a redefinition and more an extension
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Replying to @rpjohnst
I'm okay with accepting that we're not working in a field anymore, we're programming. IEEE 754 defines division, particularly division by 0 in a very consistent, useful way But then why all the distracting lies about fields, why mention them at all
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Replying to @qntm
because they're not lies! all the proofs still work- 1/0=0 just defines *strictly more* things the 0^0 comparison in one of the quotes is a very apt analogy
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Replying to @rpjohnst
"The field definition does not include division, nor do our definitions of addition or multiplication. This means we are free to define division however we want" is a lie
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Replying to @qntm
nope the post goes into this- division is *conventionally* multiplication by the inverse, but that's extra. and note that, when the inverse exists, that's still true here anyway. but at this point you're just arguing tangential trivialities
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Replying to @rpjohnst
In a field, division is always multiplication by the multiplicative inverse. This is universally understood and unambiguous
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Replying to @qntm
> when the inverse exists, that's still true here anyway if it makes you happy, pick different words and the point remains
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If this person picked different words I'd be infinitely happier. Call it "smivision" and use a double solidus, that would be 100% fine. But don't just randomly redefine known terms
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