Mathematics and Computation

A blog about mathematics for computers

Embedding the Baire space into natural numbers

A talk given at “Computation with Infinite Data: Logical and Topological Foundations” Dagstuhl seminar 11411. I describe a realizability model based on infinite-time Turing machines in which it is possible to embed the Baire space (infinite sequences of numbers) into the space of numbers.

Also see the post Constructive gem: an injection from Baire space to natural numbers for written notes on this topic.

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