私と同じ or 私のと同じ when comparing possession


[This question](https://japanese.stackexchange.com/questions/77402/what-
exactly-is-the-function-of-%E3%81%A8-in-this-sentence) made me think.

> 彼の車は私と同じです。  
>  His car is the same as **mine**.

Except that isn't a literal translation. A literal translation would be "His
car is the same as **me** ". But I am not a car.

Would it be incorrect to add a の into this sentence i.e.:

> 彼の車は私 **の** と同じです。

A Google search for "私のと同じ" does not result in many convincing hits so I'm
assuming it's wrong.

Can we understand this grammatically? Is the の just assumed to be redundant?
...




In Japanese, 彼の車は私と同じです is a perfectly natural sentence. When you compare two
things, this type of omission* is extremely common in Japanese, and it can be
found even in the most formal writings.

(* This may seem to be "omission" from the English perspective, but Japanese
people may say nothing is omitted.)

Examples:

  * 彼の英語は私より上手です。  
His English is better than mine.

  * 地球の体積は月より大きい。  
The volume of the earth is larger than that of the moon.

  * この店で売られているリンゴはあの店より美味しい。  
Apples sold at this store are more delicious than those sold at that store.

  * 彼の考えは君とは違う。  
His opinion is different from yours.

  * 限定版の値段は通常版と同じです。  
The price of the limited edition is the same as that of the regular edition.

(Actually "His car is the same as me" is a common mistake made by Japanese
students.)

If there were not many examples of 私のと同じ, it's probably because 私の is
relatively colloquial, and in speech の tends to be "omitted" anyway. Instead
of の, you can use the stiffer pronoun (の)それ and say the following:

  * 彼の車は私の車と同じです。  
彼の車は私のそれと同じです。

  * 地球の体積は月の体積より大きい。  
地球の体積は月のそれより大きい。

But sentences like these are found mainly in strict technical documents or
translated materials. You can (or should) stick to the shorter versions in
most cases.

**EDIT:** Of course you have to avoid "omission" when it causes confusion:

  * 君のお父さんは僕のお父さんより背が高い。  
Your father is taller than my father.

  * 君のお父さんは僕より背が高い。  
Your father is taller than me.




In Japanese, 彼の車は私と同じです is a perfectly natural sentence. When you compare two
things, this type of omission* is extremely common in Japanese, and it can be
found even in the most formal writings.

(* This may seem to be "omission" from the English perspective, but Japanese
people may say nothing is omitted.)

Examples:

  * 彼の英語は私より上手です。  
His English is better than mine.

  * 地球の体積は月より大きい。  
The volume of the earth is larger than that of the moon.

  * この店で売られているリンゴはあの店より美味しい。  
Apples sold at this store are more delicious than those sold at that store.

  * 彼の考えは君とは違う。  
His opinion is different from yours.

  * 限定版の値段は通常版と同じです。  
The price of the limited edition is the same as that of the regular edition.

(Actually "His car is the same as me" is a common mistake made by Japanese
students.)

If there were not many examples of 私のと同じ, it's probably because 私の is
relatively colloquial, and in speech の tends to be "omitted" anyway. Instead
of の, you can use the stiffer pronoun (の)それ and say the following:

  * 彼の車は私の車と同じです。  
彼の車は私のそれと同じです。

  * 地球の体積は月の体積より大きい。  
地球の体積は月のそれより大きい。

But sentences like these are found mainly in strict technical documents or
translated materials. You can (or should) stick to the shorter versions in
most cases.

**EDIT:** Of course you have to avoid "omission" when it causes confusion:

  * 君のお父さんは僕のお父さんより背が高い。  
Your father is taller than my father.

  * 君のお父さんは僕より背が高い。  
Your father is taller than me.

