Ten segregator jest praktyczniejszy niż tamten.

to be

Breakdown of Ten segregator jest praktyczniejszy niż tamten.

• ten: this
• niż: than
• tamten: that one

Questions & Answers about Ten segregator jest praktyczniejszy niż tamten.

Why is it ten segregator?

Because ten has to agree with segregator in gender, number, and case.

• segregator is masculine singular
• here it is in the nominative case, because it is the subject of the sentence
• the nominative masculine singular form of this is ten

So ten segregator means this binder/file.

If the noun were different, the form would change, for example:

• ta teczka — this folder
• to pudełko — this box
• te segregatory — these binders

What exactly is tamten?

Tamten means that one or that.

It is the opposite of ten:

• ten = this
• tamten = that

In your sentence, tamten stands for tamten segregator. Polish often leaves the noun out if it is obvious from context, just like English can say this binder is more practical than that one.

What case is segregator in here?