# Installing Agda

I added these lines to my configuration.nixos to get a workable Agda installation:

  (agda.withPackages (p: [ p.standard-library ]))

but there were a few issues, so I removed that and installed with
    cabal update
    cabal install Agda
which seemed to work nicely after some hackery with zlib, and installing the standard libraries.

# Owen's Geolog definitions

Owen.agda : Definitions fom Owen's first two lectures about Geolog.

These set up the basic machinery for contexts (signatures), theories and interpolation.

Compile with:
  agda -c --no-main Owen.agda

# HoTT definitions from Martin Escardo's book "Univalent Foundations" https://arxiv.org/pdf/1911.00580 

  agda -c --no-main MLTT/Universe.agda

Escardo defines everything from the ground up with his own concepts of sets, universes etc.,
independently of the standard library.

Got as far as the definition of 𝟙-induction for a single-valued type 𝟙.
The sources (in more consistent versions than in the notes) are here:
https://github.com/martinescardo/HoTT-UF-Agda-Lecture-Notes