Category theory

Opetope

In category theory, a branch of mathematics, an opetope, a portmanteau of "operation" and "polytope", is a shape that captures higher-dimensional substitutions. It was introduced by John C. Baez and James Dolan so that they could define a weak n-category as a certain presheaf on the category of opetopes. (Wikipedia).

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We Love Opera! What is an operetta? Is it the same as an opera?

What's the difference between an opera and an operetta? Here's a quick answer. Want to go to the opera, but you're not sure you'll understand what's going on? "We Love Opera" is a video series from Socratica that will help you understand what opera is all about. Opera can be exciting, f

From playlist Opera Glossary

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Karl Popper on Definitions (1974)

A version of an upload from the previous channel. It comes from a 1974 interview with Popper. The translation is my own. For more Popper: https://www.youtube.com/playlist?list=PLhP9EhPApKE_VarWCx1d_Uogn_GxsVf-o More Short Clips: https://www.youtube.com/playlist?list=PLhP9EhPApKE8v8UVlc7Ju

From playlist Karl Popper

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From playlist The BuShou of HanZi

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The BuShou of HanZi :片

A brief description of the BuShou of 片.

From playlist The BuShou of HanZi

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From playlist The BuShou of HanZi

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via YouTube Capture

From playlist Random

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Art Quiz #5

Art Quiz #5

From playlist Art Quizzes

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From playlist Projects & Installations

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From playlist Art glossary

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A brief description of the BuShou of 囗.

From playlist The BuShou of HanZi

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The Calculus of Opetopes - Eric Finster

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From playlist Mathematics

Related pages

Polytope | Higher-order operad | Substitution (algebra) | Weak n-category | Presheaf (category theory) | Shape | Category theory