可付 かふ ばん集合 しゅうごうじゃないです
kafu ban shūgōjanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 可付番集合

1. It's not a payable set.; It's not a set that can be paid for.

Negative
Polite
Casual Register
Mathematics