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HOL-LIGHT(1) General Commands Manual HOL-LIGHT(1)


hol-light - HOL Light interactive theorem prover


hol-light [options...]


The command hol-light is a simple wrapper for calling ocaml and loading the HOL Light basic definitions (by loading /usr/share/hol-light/ instead of .ocamlinit as initialization file). Loading these definitions takes about 2 minutes on modern hardware, please be patient. All options and other arguments are passed as options to ocaml.

If you have a readline-editor such as rlwrap, ledit or rlfe installed, the hol-light ocaml toplevel is wrapped in readline-editor. Install just one of these readline editors or configure your preferred one via the alternative system.


ocaml(1), readline-editor(1), rlwrap(1), ledit(1), rlfe(1)
HOL Light documentation at


The hol-light script and this manual page were written by Hendrik Tews <>, specifically for the Debian project (and may be used by others).

March 16, 2012