Meaning of それだけ in this sentence


Here is the sentence :

> 人数が多ければ **それだけ** お前達が有利になる。

I've difficulties finding information about this word. From the examples I
read, it seems to me that, when used after a clause ending in ば its meaning is
similar to the ば...ほど construction :

> 人数が多けれ **ば** 多い **ほど** 前達が有利になる。
>
> The more people there will be, the more advantage you will have.

Is this what それだけ means in this case? And if it is, does it have the same
meaning in other constructions?




Your understanding is spot on. In that sentence,

> 「それだけ」＝「その[分]{ぶん}だけ」 = "just as much"

However, I would be careful about saying that 「[人数]{にんずう}が[多]{おお}ければそれだけ」
means exactly the same thing as 「人数が多ければ多いほど」 in this particular context. This
is because the latter phrase puts no limit on the number of people.

Admittedly, I am not familiar with the story, so I have no idea about how many
people it is talking about. Knowing the exact context, you are in a better
position to decide whether or not 「多ければ多いほど」 can replace the existing phrase.

「それだけ」 does not always mean this. It can mean "only that" or "that is all" in
other contexts.




Your understanding is spot on. In that sentence,

> 「それだけ」＝「その[分]{ぶん}だけ」 = "just as much"

However, I would be careful about saying that 「[人数]{にんずう}が[多]{おお}ければそれだけ」
means exactly the same thing as 「人数が多ければ多いほど」 in this particular context. This
is because the latter phrase puts no limit on the number of people.

Admittedly, I am not familiar with the story, so I have no idea about how many
people it is talking about. Knowing the exact context, you are in a better
position to decide whether or not 「多ければ多いほど」 can replace the existing phrase.

「それだけ」 does not always mean this. It can mean "only that" or "that is all" in
other contexts.

