Proof by Contradiction: Square Root of 2 is Irrational - Math Toddler T-Shirt in Black

$20.00
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Give your child the gift of knowledge with this mathematical proof onesie! The clever design walks through the classic proof that the square root of two is irrational (it cannot be expressed as a ratio of integers).

We assume that root two can be written as a simple fraction, p/q. But as the proof unfolds, we discover that both p and q must be even, resulting in a fraction that can always be simplified further. This logical dead-end proves once and for all that root two cannot be expressed as a ratio of integers.

The last line features other famous irrational numbers: pi, phi, and e.

Featuring a colorful "blackboard" aesthetic with hand-drawn mathematical symbols, this design is as visually engaging for your child as it is intellectually stimulating for you.

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More details

  • 100% Airlume combed and ring-spun cotton
  • Heather Colombia Blue is 52% combed and ring-spun cotton and 48% polyester.
  • Lightweight fabric (4.2 oz)
  • Relaxed fit

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Quality Guarantee & Returns

  • Quality is guaranteed. If there is a print error or visible quality issue, we'll replace or refund it.
  • Because the products are made to order, we do not accept general returns or sizing-related returns.