〜と whenever's second clause must follow first clause


I'm a bit confused as to why the following sentence is wrong.

> 私はその人と話すと喫茶店{きっさてん}に行きます。

The book says

> The event described by the second clause must follow the event described in
> the first half of the sentence.

But doesn't `きっさてんにいきます` happen because of `その人と話す`?

Here are a couple of other samples sentences from the same sub section to
provide more context.

>   * 夜になると町が静かになります。
>   * 秋になると木が赤くなります。
>   * わたしはこどものとき、ふゆになるとかぜをひきました。
>

Thank you in advance!




I think if you said

> 私はその人と話すため、喫茶店に行きます。

with the meaning "[in order] to talk to that person, I [will] go to a cafe."

then that could work.

But I'm not following

> 私はその人と話すと喫茶店に行きます。

= "I to talk with that person **and** go to the cafe." ?

or " **when** I talk to the person, then I go to the cafe" ?

Or at least that's what **と** would do for me meaningwise.

If the と you're using is the one for conditionals, then it takes on a meaning
of "when" as in when the condition preceded by と is met, then the second half
follows.

> 私はその人と話すと、喫茶店に入る許可をもらいました。

= if/when I talk to that person, I receive permission to enter the cafe.
(apparently it's a pretty exclusive joint!)

I think that's what the book is trying to tell you. Or rather と has a 前後関係 not
matched by the other conditionals possible in Japanese such that the left
precedes the right.

AとB means whenever in the sense of "Whenever A has occurred, then B always
occurs after that" or "After A has happened, then B happens." Thus, it's the
best way to translate "if, then" sentences in logic. It does not refer to
concurrent events of A and B, because it temporally distinguishes the events.




I think if you said

> 私はその人と話すため、喫茶店に行きます。

with the meaning "[in order] to talk to that person, I [will] go to a cafe."

then that could work.

But I'm not following

> 私はその人と話すと喫茶店に行きます。

= "I to talk with that person **and** go to the cafe." ?

or " **when** I talk to the person, then I go to the cafe" ?

Or at least that's what **と** would do for me meaningwise.

If the と you're using is the one for conditionals, then it takes on a meaning
of "when" as in when the condition preceded by と is met, then the second half
follows.

> 私はその人と話すと、喫茶店に入る許可をもらいました。

= if/when I talk to that person, I receive permission to enter the cafe.
(apparently it's a pretty exclusive joint!)

I think that's what the book is trying to tell you. Or rather と has a 前後関係 not
matched by the other conditionals possible in Japanese such that the left
precedes the right.

AとB means whenever in the sense of "Whenever A has occurred, then B always
occurs after that" or "After A has happened, then B happens." Thus, it's the
best way to translate "if, then" sentences in logic. It does not refer to
concurrent events of A and B, because it temporally distinguishes the events.

