A psychiatrist is compelled by his patient, an obsessive mathematician, to consider the existence of a secret integer between three and four.
A psychiatrist is compelled by his patient, an obsessive mathematician, to consider the existence of a secret integer between three and four.
%20by%20%E2%80%9ENatalia%20Spivak%E2%80%9D%2C%20licensed%20under%20%E2%80%9ECC%20BY%204.0%E2%80%9D%20(https%3A%2F%2Fcreativecommons.org%2Flicenses%2Fby%2F4.0%2F)%3C%2Fdc%3Arights%3E%3C%2Frdf%3ADescription%3E%3C%2Frdf%3ARDF%3E%3C%2Fmetadata%3E%3Cmask%20id%3D%22viewboxMask%22%3E%3Crect%20width%3D%2280%22%20height%3D%2280%22%20rx%3D%220%22%20ry%3D%220%22%20x%3D%220%22%20y%3D%220%22%20fill%3D%22%23fff%22%20%2F%3E%3C%2Fmask%3E%3Cg%20mask%3D%22url(%23viewboxMask)%22%3E%3Crect%20fill%3D%22%23619eff%22%20width%3D%2280%22%20height%3D%2280%22%20x%3D%220%22%20y%3D%220%22%20%2F%3E%3Cpath%20d%3D%22M19.07%2030.47s1.57-20.23%2021.59-20.23S62.3%2030.55%2062.3%2030.55s9.43-.8%209.43%207.6c0%208.42-9.28%207.13-9.28%207.13S60.9%2067.15%2042.03%2067.15c-21.11%200-23.4-20.8-23.4-20.8s-9%20.72-9.93-6.25c-1.08-8.2%2010.37-9.64%2010.37-9.64%22%20fill%3D%22%23ffd6c0%22%2F%3E%3Cpath%20d%3D%22m64.3%2039.49.46-.41.1-.09c.12-.1-.13.1-.02.02l.24-.17q.5-.35%201.06-.62l.26-.12.05-.02.05-.02.58-.21q.6-.18%201.2-.28c.52-.08.85-.76.7-1.23-.18-.56-.67-.8-1.23-.7a9.3%209.3%200%200%200-4.87%202.43c-.38.36-.4%201.06%200%201.4.4.36%201%20.4%201.4%200zm-51.8-1.16.14.01c-.27-.02-.11-.01-.04%200l.3.05.52.14.28.09.12.05c.02%200%20.22.09.06.02-.14-.1%200-.04.03-.03l.15.06.26.13.47.3.27.22q.47.38.83.83c.33.4%201.07.37%201.41%200%20.4-.43.36-.98%200-1.4a7.3%207.3%200%200%200-4.84-2.53c-.52-.06-1.02.5-1%201%20.03.59.44.94%201%201m18.3-1.9v4.54c0%20.52.46%201.02%201%201s1-.44%201-1V36.4c0-.52-.46-1.02-1-1s-1%20.44-1%201M49.2%2036l-.15%204.81a1%201%200%200%200%201%201c.56-.02.98-.44%201-1l.15-4.8a1%201%200%200%200-1-1%201%201%200%200%200-1%201%22%20fill%3D%22black%22%2F%3E%3Cpath%20d%3D%22M35.7%2042.4c-1.18%201.26-2.17%202.74-2.36%204.5a4.4%204.4%200%200%200%201.78%204.02c1.26.9%202.88.8%204.07-.13a5.5%205.5%200%200%200%201.87-3.88c.1-.97-1.46-1.38-1.86-.5-.75%201.63.16%203.26%201.34%204.42a3.9%203.9%200%200%200%204.13.98%204.6%204.6%200%200%200%202.93-3.14%206.6%206.6%200%200%200-.82-4.87c-.64-1.11-2.37-.11-1.73%201%20.92%201.6%201.18%204-.7%205.02-.7.35-1.5.36-2.12-.12-.49-.39-1.63-1.55-1.3-2.26l-1.86-.5c-.14%201.34-1.44%203.63-2.97%202.23-1.74-1.59-.22-4%201.03-5.33.88-.94-.53-2.36-1.4-1.4z%22%20fill%3D%22black%22%2F%3E%3Cpath%20d%3D%22M19.51%2030.42c16.36-4.9%2020.13-15.57%2020.13-15.57S51.18%2029.46%2060.6%2030.5c0-.01.85-.03%202.57.15%200%200-3.22-21.28-23.36-20.56S18.19%2030.61%2018.19%2030.61l1.32-.2z%22%20fill%3D%22%23fff500%22%2F%3E%3C%2Fg%3E%3C%2Fsvg%3E)
%20by%20%E2%80%9ENatalia%20Spivak%E2%80%9D%2C%20licensed%20under%20%E2%80%9ECC%20BY%204.0%E2%80%9D%20(https%3A%2F%2Fcreativecommons.org%2Flicenses%2Fby%2F4.0%2F)%3C%2Fdc%3Arights%3E%3C%2Frdf%3ADescription%3E%3C%2Frdf%3ARDF%3E%3C%2Fmetadata%3E%3Cmask%20id%3D%22viewboxMask%22%3E%3Crect%20width%3D%2280%22%20height%3D%2280%22%20rx%3D%220%22%20ry%3D%220%22%20x%3D%220%22%20y%3D%220%22%20fill%3D%22%23fff%22%20%2F%3E%3C%2Fmask%3E%3Cg%20mask%3D%22url(%23viewboxMask)%22%3E%3Crect%20fill%3D%22%23ffa6e6%22%20width%3D%2280%22%20height%3D%2280%22%20x%3D%220%22%20y%3D%220%22%20%2F%3E%3Cpath%20d%3D%22M19.07%2030.47s1.57-20.23%2021.59-20.23S62.3%2030.55%2062.3%2030.55s9.43-.8%209.43%207.6c0%208.42-9.28%207.13-9.28%207.13S60.9%2067.15%2042.03%2067.15c-21.11%200-23.4-20.8-23.4-20.8s-9%20.72-9.93-6.25c-1.08-8.2%2010.37-9.64%2010.37-9.64%22%20fill%3D%22%23c26450%22%2F%3E%3Cpath%20d%3D%22m64.3%2039.49.46-.41.1-.09c.12-.1-.13.1-.02.02l.24-.17q.5-.35%201.06-.62l.26-.12.05-.02.05-.02.58-.21q.6-.18%201.2-.28c.52-.08.85-.76.7-1.23-.18-.56-.67-.8-1.23-.7a9.3%209.3%200%200%200-4.87%202.43c-.38.36-.4%201.06%200%201.4.4.36%201%20.4%201.4%200zm-51.8-1.16.14.01c-.27-.02-.11-.01-.04%200l.3.05.52.14.28.09.12.05c.02%200%20.22.09.06.02-.14-.1%200-.04.03-.03l.15.06.26.13.47.3.27.22q.47.38.83.83c.33.4%201.07.37%201.41%200%20.4-.43.36-.98%200-1.4a7.3%207.3%200%200%200-4.84-2.53c-.52-.06-1.02.5-1%201%20.03.59.44.94%201%201m18.3-1.9v4.54c0%20.52.46%201.02%201%201s1-.44%201-1V36.4c0-.52-.46-1.02-1-1s-1%20.44-1%201M49.2%2036l-.15%204.81a1%201%200%200%200%201%201c.56-.02.98-.44%201-1l.15-4.8a1%201%200%200%200-1-1%201%201%200%200%200-1%201%22%20fill%3D%22black%22%2F%3E%3Cpath%20d%3D%22M30.5%2032.66q.36-.4.77-.76l.09-.08.04-.03c-.12.09%200%200%20.02%200l.12-.1.45-.3.44-.25.24-.12.14-.06c.03-.01.16-.07.02%200l.05-.02.1-.04.26-.1.55-.15c.5-.12.86-.73.7-1.23s-.7-.83-1.23-.7a8%208%200%200%200-4.17%202.52c-.34.4-.42%201.03%200%201.4.38.36%201.05.43%201.41%200m18.4-1.87q.9.15%201.8.43l.4.15.25.09.06.02-.06-.03c.02.04.19.08.23.1l.17.08.46.23c.46.25%201.1.13%201.37-.36.26-.5.13-1.1-.36-1.37a12%2012%200%200%200-3.8-1.3c-.28-.03-.52-.04-.77.1a1%201%200%200%200-.46.6c-.1.49.15%201.15.7%201.24zM36.4%2047.12a17%2017%200%200%201%2011.35-.1c1.22.4%201.74-1.52.53-1.94a18.8%2018.8%200%200%200-12.4.1c-.5.19-.86.69-.7%201.24.12.49.71.88%201.22.7%22%20fill%3D%22black%22%2F%3E%3Cpath%20d%3D%22M59.48%2013.61s4.16-4.36%207.25-.75c3.29%203.86-2.45%207.15-2.45%207.15%200%20.05%206.05%2012.66%203.62%2011.58-2.12-.94-7.86%203.25-7.86%203.25l-3.2-17.41-30.5.75-5.83%2016.38c.05%200-3.5-3.86-6.1-2.73s-.63-5.66%203.5-12.62c0%200-5-3.01-2.53-6.21%203-3.92%207.06-.47%207.06-.47s7.53-5.27%2019.39-5.27%2017.69%206.4%2017.69%206.4%22%20fill%3D%22%23ffffff%22%2F%3E%3Cpath%20d%3D%22m20.38%209.89-8.61%2010.98c-.33.42-.41%201%200%201.41.35.35%201.08.43%201.41%200l8.61-10.98c.33-.42.41-1%200-1.41-.35-.35-1.08-.43-1.41%200m39.04.58q4.98%207.08%2010.28%2013.9c.33.43%201.06.34%201.4%200%20.44-.42.34-1%20.01-1.41a356%20356%200%200%201-9.97-13.5c-.73-1.04-2.47-.05-1.73%201z%22%20fill%3D%22%23ffffff%22%2F%3E%3C%2Fg%3E%3C%2Fsvg%3E)
%20by%20%E2%80%9ENatalia%20Spivak%E2%80%9D%2C%20licensed%20under%20%E2%80%9ECC%20BY%204.0%E2%80%9D%20(https%3A%2F%2Fcreativecommons.org%2Flicenses%2Fby%2F4.0%2F)%3C%2Fdc%3Arights%3E%3C%2Frdf%3ADescription%3E%3C%2Frdf%3ARDF%3E%3C%2Fmetadata%3E%3Cmask%20id%3D%22viewboxMask%22%3E%3Crect%20width%3D%2280%22%20height%3D%2280%22%20rx%3D%220%22%20ry%3D%220%22%20x%3D%220%22%20y%3D%220%22%20fill%3D%22%23fff%22%20%2F%3E%3C%2Fmask%3E%3Cg%20mask%3D%22url(%23viewboxMask)%22%3E%3Crect%20fill%3D%22%23619eff%22%20width%3D%2280%22%20height%3D%2280%22%20x%3D%220%22%20y%3D%220%22%20%2F%3E%3Cpath%20d%3D%22M19.07%2030.47s1.57-20.23%2021.59-20.23S62.3%2030.55%2062.3%2030.55s9.43-.8%209.43%207.6c0%208.42-9.28%207.13-9.28%207.13S60.9%2067.15%2042.03%2067.15c-21.11%200-23.4-20.8-23.4-20.8s-9%20.72-9.93-6.25c-1.08-8.2%2010.37-9.64%2010.37-9.64%22%20fill%3D%22%23ffd6c0%22%2F%3E%3Cpath%20d%3D%22m64.3%2039.49.46-.41.1-.09c.12-.1-.13.1-.02.02l.24-.17q.5-.35%201.06-.62l.26-.12.05-.02.05-.02.58-.21q.6-.18%201.2-.28c.52-.08.85-.76.7-1.23-.18-.56-.67-.8-1.23-.7a9.3%209.3%200%200%200-4.87%202.43c-.38.36-.4%201.06%200%201.4.4.36%201%20.4%201.4%200zm-51.8-1.16.14.01c-.27-.02-.11-.01-.04%200l.3.05.52.14.28.09.12.05c.02%200%20.22.09.06.02-.14-.1%200-.04.03-.03l.15.06.26.13.47.3.27.22q.47.38.83.83c.33.4%201.07.37%201.41%200%20.4-.43.36-.98%200-1.4a7.3%207.3%200%200%200-4.84-2.53c-.52-.06-1.02.5-1%201%20.03.59.44.94%201%201m18.3-1.9v4.54c0%20.52.46%201.02%201%201s1-.44%201-1V36.4c0-.52-.46-1.02-1-1s-1%20.44-1%201M49.2%2036l-.15%204.81a1%201%200%200%200%201%201c.56-.02.98-.44%201-1l.15-4.8a1%201%200%200%200-1-1%201%201%200%200%200-1%201%22%20fill%3D%22black%22%2F%3E%3Cpath%20d%3D%22M20.7%2047.13a24%2024%200%200%200-4.7%203c-.41.33-.37%201.07%200%201.41.43.4.98.35%201.41%200l.25-.2.13-.1q-.12.1%200%200a17%2017%200%200%201%201.62-1.12q1.11-.7%202.3-1.27c.47-.23.64-.94.36-1.37-.3-.49-.86-.6-1.37-.36zm1.48%206.02-2.54%203.81c-.29.44-.1%201.13.36%201.37.5.27%201.06.11%201.37-.36l2.54-3.8c.3-.45.1-1.14-.36-1.38-.5-.27-1.06-.1-1.37.36m5.8%206.21-1.7%203.95c-.1.26-.17.5-.09.77.06.23.24.48.46.6.43.23%201.15.15%201.37-.36l1.7-3.95c.1-.26.17-.5.1-.77a1%201%200%200%200-.47-.6c-.43-.23-1.15-.15-1.37.36m6.22%203.19a63%2063%200%200%201-.45%205.5c-.07.52.5%201.02%201%201%20.6-.03.93-.44%201-1q.34-2.74.45-5.5a1%201%200%200%200-1-1c-.56.03-.98.44-1%201m7.19.98.54%205.93c.05.52.43%201.03%201%201%20.5-.02%201.05-.44%201-1l-.54-5.93c-.05-.52-.43-1.03-1-1-.5.02-1.05.44-1%201m7.36-1.7a12%2012%200%200%200%202.5%205.26c.34.4%201.1.37%201.42%200%20.4-.43.35-.98%200-1.4l-.1-.14q.11.15%200%200l-.19-.26-.36-.54a11%2011%200%200%201-.62-1.14q-.08-.15-.13-.3l-.05-.14-.22-.6q-.2-.63-.32-1.27c-.1-.5-.74-.86-1.23-.7-.55.18-.8.68-.7%201.23m5.9-3.58%202.54%204.52c.26.46.92.65%201.37.36s.63-.88.36-1.37l-2.54-4.52c-.26-.46-.92-.65-1.37-.36s-.63.88-.36%201.37m3.1-6.35a9%209%200%200%200%203.74%203.62c.47.24%201.1.14%201.37-.36.24-.46.14-1.1-.36-1.37a8%208%200%200%201-1-.6l-.23-.17c.27.2%200%200-.07-.06l-.44-.4-.4-.4-.18-.22c-.05-.07-.24-.34-.06-.07q-.34-.48-.64-1c-.25-.45-.92-.64-1.37-.35s-.63.88-.36%201.37%22%20fill%3D%22black%22%2F%3E%3Cpath%20d%3D%22M50.27%2044.1a244%20244%200%200%200-18.92.2s-.85%2012.28%209.88%2012.75c9.6.42%209.03-12.96%209.03-12.96z%22%20fill%3D%22white%22%2F%3E%3Cpath%20d%3D%22M50.27%2043.1q-9.47-.26-18.92.2c-.57.03-.96.44-1%201-.3%204.37%201.29%209.41%205%2011.96%202.88%201.97%207.21%202.5%2010.35.87%202.69-1.39%204.18-4.28%204.9-7.1.5-1.9.76-3.97.68-5.93-.05-1.28-2.05-1.29-2%200%20.14%203.56-.62%208.2-3.5%2010.6-2.35%201.95-6.15%201.7-8.71.27-2.27-1.26-3.6-3.56-4.23-6.02-.4-1.5-.6-3.06-.5-4.64l-1%201q9.46-.45%2018.93-.2c1.29.02%201.29-1.98%200-2z%22%20fill%3D%22black%22%2F%3E%3Cpath%20d%3D%22M17.34%2030.1s.5%206.2%201.86%205.62%202.73-11.1%202.73-11.1%2015.58-7.21%2037.2%200c0%200%20.19%209.54%201.56%209.93%201.34.4%202.64-4.37%202.64-4.37S63.6%208.45%2040.32%208.56c-22.1.1-22.98%2021.54-22.98%2021.54%22%20fill%3D%22%23ff543d%22%2F%3E%3C%2Fg%3E%3C%2Fsvg%3E)
