# Is 0<d,l<1 equivalent to writing separately 0<d<1 and 0<l<1 ?

by FortzaParis
Tags: 0<d l<1, 0<d<1, equivalent, separately, writing
 P: 3 Dear all, I'm writing a paper for a scientific journal and I need to save as much typographic space as I can. In a proposition, I need to specify that the parameters "d" and "l" assume values between zero and one. I am wondering if (in scientific writing) is it correct to write "0
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P: 3,516
 Quote by FortzaParis Dear all, I'm writing a paper for a scientific journal and I need to save as much typographic space as I can. In a proposition, I need to specify that the parameters "d" and "l" assume values between zero and one. I am wondering if (in scientific writing) is it correct to write "0
I've been using the shorthand form like that for years now, and no professors of mine have ever complained about it. In fact, from my recollection, I've seen some professors use the short form while others don't.

The way I see it, if it is clear to the reader and doesn't need moments to be deciphered, it's good enough to use.
 P: 3 Thanks, Mentallic!
 Sci Advisor P: 1,742 Is 0
 Math Emeritus Sci Advisor Thanks PF Gold P: 39,353 I also would tend to interpret "0< d,l< 1" as "0< d< 1" and "0< l< 1" or "both d and l are between 0 and 1". If you mean 0< d and l< 1, grammatically, you should have the word "and" between them, not a comma.
 Sci Advisor P: 1,742 How would one interpret the sentence "03"? This is probably an insignificant issue, but grammatically commas are used to separate things.
 P: 1,291 I tend to agree with HOI here, but the context does matter. If this was part of a statement that disregardthat proposes, I would lean the other way. But if there was no listing of relations, and the comma appeared instead of an and, there would be no reason to write something that way unless you meant what the OP intended.
 Mentor P: 18,086 I often write ##0
 P: 1 I agree with micromass, it (or in equivalent circumstances) is used regularly in school level maths
P: 3
 Quote by disregardthat I would personally interpret that as 0
Dear all, thanks for the suggestions! I think I will write $$d,l \in (0,1)$$ so that there is no possibility of misunderstanding.
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P: 3,516
 Quote by disregardthat The comma seems to separate the two statements "0
Personally, the reason I wouldn't interpret it like that is because it would be a very odd way to do it.
0<d,l<1 is a quite commonly used expression, while it's very uncommon to put the variable of an unbounded inequality on the right side. 0<d would most often than not be d>0.

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