Welcome to Covariance
The general fact of the uniqueness of the universal arrows implies the uniqueness of the ... object, up to a unique isomorphism (who wants more?).
Recently updated notes
| Note | Last Updated |
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| Eigenvectors and linear independence | 3:47 PM - March 15, 2025 |
| 2023-09 | 3:47 PM - March 15, 2025 |
| Existence of an identity element in a group | 3:46 PM - March 15, 2025 |
Knowledge
Mathematics
Algebra theory
Not to be confused with the general concept of algebra (abstract or otherwise), an algebra is an algebraic structure similar to a module, only with two internal binary operations.
| Note | Last Updated |
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| Algebras | 6:59 AM - November 05, 2024 |
| Exterior algebras | 10:13 AM - November 07, 2024 |
| Symmetric algebras | 6:52 AM - November 07, 2024 |
| Symmetric and alternating tensors | 8:29 AM - November 08, 2024 |
| Tensor algebras | 6:50 AM - November 07, 2024 |
Algebraic geometry
| Note | Last Updated |
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| Examples of classical conic duality | 2:02 PM - July 26, 2024 |
Category theory
Field theory
Group theory
Module theory
Ring theory
Tropical algebraic geometry
Software
Blender
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Houdini
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| Systems of equations |