Re: [HoTT] The Interval type in Hott vs. in real analysis

[Michael Shulman <shu...@sandiego.edu>]

The higher inductive "homotopical" interval is a very different thing
from the "topological" interval of real numbers.  The connection is
that the homotopical interval is the "shape" or "fundamental
infinity-groupoid" of the topological interval.  The tradition in
homotopy theory of identifying topological spaces with their shapes,
or differently-put of studying infinity-groupoids indirectly by way of
topological spaces whose shapes they are, leads to the confusion and
the coincidence of names.

On Tue, Oct 17, 2017 at 9:39 AM, du yu <doof...@gmail.com> wrote:
> I have seen the definition of Interval type [0,1] in HoTT book as higher
> inductive type and in cubical type theory as De-morgan algebra, and in real
> analysis there exists continuous function from [0,1] to Real,which means
> [0,1] is equivalent to R . How are these thing relate to each other?
>
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