- [[yog]] https://mathstodon.xyz/@yog/109252540614252185
- [[yog]] https://mathstodon.xyz/@yog/109254498343419293
- [[yog]] https://mathstodon.xyz/@yog/109254525683552030
- [[yog]] https://mathstodon.xyz/@yog/109254512623795369
- [[yog]] https://mathstodon.xyz/@yog/109255071153171831