James Hein is a Professor Emeritus in the Department of Computer Science at Portland State University. He has a PhD in mathematics from Northwestern University and an MS in computer science from Stanford University. He continues to enjoy finding ways to help students learn about the mathematical foundations of computer science.

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We are a division of Goodwill Industries of the Columbia Willamette, headquartered in Portland, Oregon, U.S.A. When you buy from Goodwill Books not only will you feel happy about the money you save, you'll feel good knowing your purchase helps Goodwill provide vocational opportunities to people with barriers to employment. For more information please visit our website: www.goodwillbooks.com

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Goodwill Books
2920 SE Century Blvd, Hillsboro, OR, 97123, U.S.A.

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Terms of Sale

All books subject to prior sale. Books shipped via USPS Media Mail or Priority Mail. Extra postage required for heavy books and sets unless otherwise noted. Payment in U.S. dollars via VISA/MASTERCARD/DISCOVER. Sorry, we do not accept checks or money orders. Purchases may be returned within 14 days of receipt for refund; refund will be initiated upon receipt of returned book.

Goodwill Books
2920 SE Century Blvd
Hillsboro, OR 97123
gicwbook@gicw.org

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Shipping costs are based on books weighing 2.2 LB, or 1 KG. If your book order is heavy or oversized, we may contact you to let you know extra shipping is required.

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Order quantity	5 to 14 business days	3 to 6 business days
First item	US$ 3.99	US$ 7.00

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