https://github.com/leoprover/ask

Stand-alone Skolemizer for TPTP formulas
https://github.com/leoprover/ask

artificial-intelligence automated-reasoning logic skolemization theorem-proving tptp

Last synced: 22 days ago
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Stand-alone Skolemizer for TPTP formulas

• Host: GitHub
• URL: https://github.com/leoprover/ask
• Owner: leoprover
• License: mit
• Created: 2024-07-29T14:15:40.000Z (5 months ago)
• Default Branch: master
• Last Pushed: 2024-11-18T16:57:27.000Z (about 1 month ago)
• Last Synced: 2024-11-18T18:19:54.122Z (about 1 month ago)
• Topics: artificial-intelligence, automated-reasoning, logic, skolemization, theorem-proving, tptp
• Language: Scala
• Homepage:
• Size: 567 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

        
# ASk: Alex' Skolemizer

`ask` may be cited by [![DOI](https://zenodo.org/badge/835282456.svg)](https://doi.org/10.5281/zenodo.14181704)

```

usage: ask [OPTIONS]  []

 Apply a Skolemization transformation to the input file.

 It is assumed that bound variables are named apart, and that there are no free variables.

  can be either a file name or '-' (without parentheses) for stdin.

 If  is specified, write result to , otherwise to stdout.

 If no options are provided, all the existentials in the formula are Skolemized,

 using some fixed symbol suffixed with _NN, NN=00-99.

 

 If only -s is provided and  is of the form

 _NN, Skolemize all the existentials in the formula, using

 the symbol  replacing NN with 00-99.

 

 If only -s is provided and  is not of the form

 _NN, Skolemize the leftmost existentially quantified variable

 in the formula, using the .

 

 If only -v is provided, Skolemize the , using

 some fixed symbol suffixed with _00.

 

 If both -s and -v are provided, Skolemize the  using

 the symbol .

 If -e is specified, also output the equality between the Skolem term and

   an epsilon term.

Options:

  -v 

     The existential variable to Skolemize.

  -s 

     The Skolem symbol base name to use for the Skolemization symbols.

     Defaults to "aSk" if omitted.

     

  -e Output a choice term for the Skolem term.

  --no-tstp

     Disable TSTP-compatible output: The output in  (or stdout) will

     not start with a SZS status value and the output will not be wrapped within

     SZS BEGIN and SZS END block delimiters.

  --version

     Prints the version number of the executable and terminates.

  --help

     Prints this description and terminates.```