Available for immediate purchase. Likely unused. There are no creases from being opened, and it's in near-new condition. I visually checked for any writing and found none, so it appears unused (no writing). However, there may be oversights, so please consider this before purchasing. Below is an introduction generated by AI: A complete guide to deepen your understanding of mathematics. - Title: System Mathematics 1 Various Edition Perfect Guide - Publisher: Kenkyusha Publishing - ISBN: 978-4-10-141415-8 - Price: 1686 yen - Main price: 1530 yen Thank you for viewing.