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References
- ↑ Johnstone 1977
- ↑ "On a Topological Topos at The n-Category Café". golem.ph.utexas.edu.
- ↑ https://page.math.tu-berlin.de/~roch/files/abelian_categories.pdf
- ↑ "Is an additive category a balanced category?". MathOverflow.
- ↑ "Is every balanced pre-abelian category abelian?". MathOverflow.
- P.T. Johnstone,"Topos theory", Academic Press (1977)
- Roy L. Crole, Categories for types, Cambridge University Press (1994)
