<figure class="wp-block-image size-full"><a href="https://aperiodical.com/wp-content/uploads/2019/03/MathematicalObjectsBanner-800.jpg"><img loading="lazy" decoding="async" width="800" height="209" src="https://aperiodical.com/wp-content/uploads/2019/03/MathematicalObjectsBanner-800.jpg" alt="Mathematical Objects" class="wp-image-20198" srcset="https://aperiodical.com/wp-content/uploads/2019/03/MathematicalObjectsBanner-800.jpg 800w, https://aperiodical.com/wp-content/uploads/2019/03/MathematicalObjectsBanner-800-300x78.jpg 300w, https://aperiodical.com/wp-content/uploads/2019/03/MathematicalObjectsBanner-800-768x201.jpg 768w, https://aperiodical.com/wp-content/uploads/2019/03/MathematicalObjectsBanner-800-150x39.jpg 150w, https://aperiodical.com/wp-content/uploads/2019/03/MathematicalObjectsBanner-800-600x157.jpg 600w" sizes="auto, (max-width: 800px) 100vw, 800px" /></a></figure>



A conversation about mathematics inspired by a 1960s game designed to teach set theory. Presented by Katie Steckles and Peter Rowlett.



<a href="https://www.tandfonline.com/doi/full/10.1080/10724117.2023.2168404">On-Sets: A Vintage Set Theory Game</a> by Peter Rowlett is free to read in Math Horizons.



<figure class="wp-block-image size-large"><a href="https://aperiodical.com/wp-content/uploads/2023/06/on-sets-scaled.jpg"><img loading="lazy" decoding="async" width="1024" height="576" src="https://aperiodical.com/wp-content/uploads/2023/06/on-sets-1024x576.jpg" alt="Cards with coloured dots and dice with coloured dots and mathematical symbols" class="wp-image-28046" srcset="https://aperiodical.com/wp-content/uploads/2023/06/on-sets-1024x576.jpg 1024w, https://aperiodical.com/wp-content/uploads/2023/06/on-sets-300x169.jpg 300w, https://aperiodical.com/wp-content/uploads/2023/06/on-sets-768x432.jpg 768w, https://aperiodical.com/wp-content/uploads/2023/06/on-sets-1536x864.jpg 1536w, https://aperiodical.com/wp-content/uploads/2023/06/on-sets-2048x1152.jpg 2048w, https://aperiodical.com/wp-content/uploads/2023/06/on-sets-150x84.jpg 150w, https://aperiodical.com/wp-content/uploads/2023/06/on-sets-800x450.jpg 800w, https://aperiodical.com/wp-content/uploads/2023/06/on-sets-600x337.jpg 600w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></a></figure>

A conversation about mathematics inspired by a 1960s game designed to teach set theory. Presented by Katie Steckles and Peter Rowlett. On-Sets: A Vintage Set Theory Game by Peter Rowlett is free to read in Math Horizons.

<a href="https://aperiodical.com/wp-content/uploads/2019/03/MathematicalObjectsBanner-800.jpg" rel="noopener noreferrer"></a>



A conversation about mathematics inspired by a 1960s game designed to teach set theory. Presented by Katie Steckles and Peter Rowlett.



<a href="https://www.tandfonline.com/doi/full/10.1080/10724117.2023.2168404" rel="noopener noreferrer">On-Sets: A Vintage Set Theory Game</a> by Peter Rowlett is free to read in Math Horizons.



<a href="https://aperiodical.com/wp-content/uploads/2023/06/on-sets-scaled.jpg" rel="noopener noreferrer"></a>

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Mathematical Objects: On-Sets

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