This is the 2024 and 2025 edition. I believe this is a collection of excellent questions that combine multiple arguments based on fundamental concepts. Therefore, even problems that seem difficult at first glance are mostly understandable when you look at the answers. Some notes were lightly written in pencil in the blank memo sections, but they have all been erased, so you should be able to use it with almost no problems. However, please understand that it has been used to some extent.