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    Hippotenuse - DrT - Tee

    $19.99

    If you love graphic math tees as much as Dr.Trefor, you’ll love our Hippotenuse t-shirt! This casual fit, super-soft 100% cotton t-shirt features a right-angled triangle with a classic play...

    Do-mug - DrT - Tee

    $19.99

    Do-mug - DrT - Tee Our Dou-Mug t-shirt is perfect for those who admire Dr. Trefor's graphic math tees. Crafted of 100% cotton, it features a relaxed fit and a...

    Pi complex domain - DrT - Tee

    $19.99

    Celebrate diversity in all its forms – and your passion for math – with our classic Pi print in a complex domain coloring design! This unisex fit, 100% cotton math...

    Expected Goal - Soccermatics - Tee

    $24.99

    Show the world that there’s beautiful mathematics behind the beautiful game: our Expected Goal math tee combines the best of both worlds with its stylish and well-designed front and back...

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