Lectures onType Theory
Chapter 216
Chapter 216OptionalScaffold

Intrinsic Topology of the Universe

Prerequisites. Direct starred prerequisites: none. No later core chapter depends on this route.

Remark 216.1

Draft status. This chapter is a scaffold.

Opening obstruction

In constructive univalent foundations, maps out of a universe can satisfy continuity principles that have no classical set-theoretic analogue.

Development contract

Freeze the TypeTopology assumptions, construct the intrinsic topology and prove the selected continuity/Rice-style consequence. State function extensionality, convergence and universe hypotheses at every export.

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