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A sponsor's letter.
Dear editor, I am acting as a sponsor of the research by my students.
They are going to submit their article "Variants of the Game of Nim that have Inequalities as Conditions".
I am a high school teacher who has a PhD. in mathematics and a PhD. in mathematics education. My research field includes pure mathematics and creative mathematics education that include students research project. My students have published their article three times in the previous issue of the Undergraduate Math Journal.
This time they have studied combinatorial games, and discovered many interesting facts and theorems. Some part of their proofs are a little bit difficult to read, but they are quite rigid in logic that they used.
I have been working with these students, and I hope their article is well received by readers of you journal.
Ryohie Miyadera, PhD.
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