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Yahoo Bid Books & Magazines Science & Technology Mathematics
数学セミナー 1986年9月1日発行 第25号通巻298号 特集:なぜ証明があるのか 日本評論社
     

  • Product Quantity
    : 1
  • Starting Bid
    :700円
  • Highest Bidder
    : nop******** / Rating:617
  • Listing Date
    :2025年11月09日 15時24分
  • Bidding closes on
    :2025年11月10日 16時55分
  • Auction Number
    :s1207173817
  • Condition
    :Damaged and stained (specify in description)
  • Automatic Extension
    :No
  • Authentication
    :Yes(Description)
  • Early Closing
    :Yes
  • Can I return the product?
    :no
  • Description
  • Q&A ()
  • Cost Estimator
  • Problem Item Response Procedur
Notes
  1. Please pay attention to the local shipping fee in Japan and confirm before placing a bid.
巻頭言 マイコン世代の三パ
四方義啓 1

TEA TIME
 汗と涙の記憶
みつはしちかこ 2

 気にはしても苦にするな
望月一宏 3

特集 なぜ証明があるのか
 なぜ数学を語る者は証明を語るのか
岩村聯 4

 証明はほんとうに必要か
山口昌哉 8

 証明の心理・納得の論理
銀林浩 13

連載 算私語録
安野光雅 18

第1回日本グラフ理論国際会議
榎本彦衛/秋山仁 21

高校生諸君!!
 数学って,おもしろい
武藤徹 30

4次元ポリハイパキューブ(表紙のつづき)
桑垣煥 37

やさしい?
sin 39

シナジェティクストポロジーと空間充填における相互変換
 上
梶川泰司 40

初代東京数学会社総代・神田孝平の数学と人間像
 下
小松醇郎 49

連載 数と論理
 無限の対象化――無限の学・集合論の成立と数学における自由(下)
赤攝也 54

連載 物理は自由だ 2 ――高校生のために
 “1/2”の謎
江沢洋 62

連載 muMATHで学ぶ整数論(5)
森本光生 67

北極の方向
sin 72

数式ぐるい
清水達雄 74

現代数学史のひとこま
 単項化定理をめぐる数学史のあれこれ 上
三宅克哉 77

連載 円形の池に浮かぶ中の島の形について(44)
松浦重武 86

『リー群の話』の訂正
佐武一郎 94

NOTE
 オイラーの分数式公式
本間栄次郎 96

 n次元単体の外接球の半径
河原淳 97

 二倍角三角形の性質
江藤稔明 97

BOOKS
 『フラクタル』高安秀樹著
木上淳 98

 『バロック風物理学序説』
林淳一 99

同人誌自己紹介
 こんわかいNEWS
高木茂男 101

エレガントな解答をもとむ
 出題
一松信 103

 解答
永田雅宜 103

細井勉 103

 出題
芳賀咊夫 103

4次元超立方体による超直方体
桑垣煥 表紙
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Product Price JPY
Japanese Consumption Tax(10%) JPY

A 10% consumption tax is applied to goods and services in Japan. The price may include the tax or it may be added separately. Please check the price details when ordering.

Note: This is a domestic sales tax applied within Japan.

Japan Local Shipping Fee JPY Japan Local Shipping Fee Reference
Product Weight KG The maximum weight limit is 30 kg
International Shipping Methods
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1. International Shipping

   Air Freight: If the item status is not confirmed within two days after the arrival notice, any customer complaints cannot be addressed with the seller.

2. After Receiving the Product

Please confirm and inspect the product as soon as possible to ensure that the product specifications, quantity, accessories, and description are correct

If, unfortunately, there are any issues, you can refer to the following examples on how to report related product problems:
1. Example of missing product information
2. Example of product not matching provided information
3. Example of damaged product information

Important Notes: 1. If the seller is unwilling to ship overseas or is unaware that the product will be shipped overseas, the international shipping cost for returns or exchanges will need to be borne by the member. You may refer to the EMS e-Express fee inquiry from the post office. If it involves alcoholic beverages or items that affect flight safety, the post office cannot be used for shipment, and only DHL can be used to ship back to Japan.
2. During the product complaint handling period, please retain the complete outer packaging of the product (including the shipping label information), and refrain from attempting any repairs or altering the original condition. Any modifications may result in the inability to process the case.

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1. Please do not unpack, use or repair the received item yourself, and be sure to keep the original packaging to facilitate subsequent handling of related matters, so as to avoid changes to the item that may cause the seller to be unwilling to process.

2. You can call customer service, and the customer service will leave a message for you as below. Please provide the following information:
"Hello, we will first help you establish a complaint case for Product ID: _______ .But we need you to 2-3 clear photos of the product issue, including photos of the product problem, product packaging, shipping details slip, and outer box. Send them to service@letao.my and inform us of your desired resolution (failing to provide this may result in an inability to process subsequent matters). After sending the email, notify us in the customer service message. We will confirm with the seller as soon as possible. and if there are any related questions, we will contact you through the customer service message. Thank you for your cooperation."

Please provide:
1. "Product ID"
2. Photo of the "Delivery Note" (if any)
3. Photos of the outer box (including inner and outer packaging)
4. Photos of the product (Please include relevant descriptions to help us confirm with the seller)

Important Notes:
1. Do not include foreign text or other products in the background of the image.
2. Please keep the complete product packaging (including the shipping label information), and refrain from repairing or altering the original condition on your own, as any changes may result in the case being unable to be processed.
3. Please provide the relevant information within 48 hours to avoid missing the golden hour for reflection and causing situations that cannot be handled.
4. Due to 99% of Japanese sellers being unwilling or unaware of shipping goods overseas, if a seller is willing to handle the issue, the goods must be sent back to Japan, and the international shipping costs incurred must be borne by the member. Letao will use postal EMS international express to send the goods back to Japan.
5. As the goods are purchased from overseas, it may take approximately one to two weeks to complete the relevant processing procedures when issues arise with the goods. Please be reminded that you can inquire about the approximate cost through the EMS service at the post office.

4. FAQ

1. Issue of Authenticity: If antique or branded goods are found to be counterfeit upon receipt, clear photos showing the differences between the genuine product and the imitation must be provided as evidence. If unable to provide relevant proof, assistance can be sought to find a third-party reputable organization for a premium authentication service .
2. Leaking Iron Teapot: If an antique iron teapot is leaking, please take clear photos of the leaking area and provide them.
3. Transport Damage: If the goods are damaged during international shipping (to the pickup point), you need to provide photos of the outer packaging of the parcel and clear photos of the damaged goods' outer packaging.

※ Note: Photos provided to sellers should not contain any foreign-related information.
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    Product name: 数学セミナー 1986年9月1日発行 第25号通巻298号 特集:なぜ証明があるのか 日本評論社
    Notes:
    Customer service hours:
    • Monday to Friday 10:00-18:00
    Customer service hotline:
    Customer Service Email: service@letao.my