Homotopy Type Theory algebraic formulation of dependent type theory > history (Rev #4, changes)

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Idea

The goal of this line of work is to find an essentially algebraic formulation of dependent type theory. This automatically provides free models and quotients. The syntax will then be the initial model.

Rijke’s E-systems are a generalization of Voevodsky’s B-systems.

This line of research should be compared with Dybjer’s categories with families which is a generalized algebraic theory; see categorical model of dependent types for more information.

References

• Egbert Rijke, An algebraic formulation of dependent type theory , ( PDF mailing list discussion)

• Vladimir Voevodsky, B-systems, arXiv

• Vladimir Voevodsky, A C-system defined by a universe in a category, arXiv arXiv:1406.7413

• Vladimir Voevodsky, C-system of a module over a monad on sets, arXiv arXiv:1406.7413

• Vladimir Voevodsky, Subsystems and regular quotients of C-systems, arXiv arXiv:1406.7413