Can somebody explain to me the difference beetween these two grammatical
forms? They both seem to have the same meaning of "it doesn't mean that" ,and
also they are both used at the end of the sentence. Perhaps, the difference is
that というものではない, must be preceded by a verb or adjectives in ば form?
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2019-06-24T14:01:17.770
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2019-06-25T02:01:38.140
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question
grammar
What's the difference between わけではない and というものではない？
I think this question is essentially about the difference between 訳だ and ものだ.

  * [Why should I use わけだ and not ものだ in this sentence?](https://japanese.stackexchange.com/q/49130/5010)

Only 訳 can describe a reason-conclusion relationship typically described with
words like "because", "therefore", etc. もの focuses on a cold fact, a customary
obligation, or "common sense".

For example, when you give a general fact or advice, the following sentences
are roughly the same:

> It's not that an expensive gift is always good.
>
>   * 贈り物は値段が高ければ良いという訳ではない。
>   * 贈り物は値段が高ければ良いというものではない。
>

However, you can only use 訳ではない in the following situation:

> I did say I like baseball, but that is not to say I want to be a baseball
> player.
>
>   * 野球が好きとは言ったけど、野球選手になりたいという訳ではない。
>   * [??] 野球が好きとは言ったけど、野球選手になりたいというものではない。 (highly unnatural)
>

In this case, you are trying to deny a false reason-conclusion relationship,
and the latter half of the sentence has nothing to do with common sense or
customs, so 訳 is the natural choice.

Related:

  * [What's the meaning of 〜というものではない？](https://japanese.stackexchange.com/q/12510/5010)
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2019-06-25T01:36:33.013
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2019-06-25T02:01:38.140
2019-06-25T02:01:38.140
5010
5010
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answer