SWI-Prolog -- help/1

Documentation
- Reference manual
  - Overview
    - Online Help
      - help/0
      - help/1
      - apropos/1
      - explain/1
      - explain/2
- Packages

Availability::- use_module(library(help)).(can be autoloaded)

help(+What)

Show specified part of the manual. What is one of:

<`Name`>/<`Arity`>	Give help on specified predicate
<`Name`>	Give help on named predicate with any arity or C interface function with that name
<`Section`>	Display specified section. Section numbers are dash-separated numbers: `2-3` refers to section 2.3 of the manual. Section numbers are obtained using apropos/1.

Examples:

`?- help(assert).`	Give help on predicate assert
`?- help(3-4).`	Display section 3.4 of the manual
`?- help('PL_retry').`	Give help on interface function PL_retry()

See also apropos/1 and the SWI-Prolog home page at http://www.swi-prolog.org, which provides a FAQ, an HTML version of the manual for online browsing, and HTML and PDF versions for downloading.