Categorify shirt

Have these convenient reminders always pasted on your person, in case you forget what to do, when confronted with a hard math problem. Or have a handy response to those pesky questions "but what do you *actually* do as a mathematician".

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From the manufacturer: Bella + Canvas 3001 Unisex Short Sleeve Jersey T-Shirt with Tear Away Label

• 100% combed and ring-spun cotton*
• Fabric weight: 4.2 oz (142 g/m2)
• Tear-away label
• Shoulder-to-shoulder taping
• Side-seamed

The Bella+Canvas 3001 t-shirt feels soft and light, with just the right amount of stretch. It's comfortable and the unisex cut is flattering for both men and women. We can't compliment this shirt enough – it's one of our crowd favorites. And it's sure to be your next favorite too! *Heather colors are 52% combed and ring-spun cotton/48% polyester. Athletic and Black Heather are 90% combed and ring-spun cotton/10% polyester.