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opam-version: "2.0"

     

       
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synopsis: "Proof assistant for the λΠ-calculus modulo rewriting"

     

       
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description: """

     

       
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This package provides:

     

       
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- A lambdapi command for checking .lp or .dk files,

     

       
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translating .dk files to .lp files and vice versa,

     

       
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or launching an LSP server for editing .lp files.

     

       
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- A library of logic definitions and basic definitions and proofs

     

       
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on natural numbers and polymorphic lists.

     

       
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- A rich Emacs mode based on LSP (available on MELPA too).

     

       
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- A basic mode for Vim.

     

       
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- OCaml libraries.

     

       
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A VSCode extension is also available on the VSCode Marketplace.

     

       
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Find Lambdapi user manual on https://lambdapi.readthedocs.io/.

     

       
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Lambdapi provides a rich type system with dependent types.

     

       
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In Lambdapi, one can define both type and function symbols

     

       
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by using rewriting rules (oriented equations).

     

       
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A symbol can be declared associative and commutative.

     

       
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Lambdapi supports unicode symbols and infix operators.

     

       
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The declaration of symbols and rewriting rules is separated

     

       
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so that one can easily define inductive-recursive types.

     

       
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Lambdapi checks that rules are locally confluent (by checking

     

       
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the joinability of critical pairs) and preserve typing.

     

       
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Rewrite rules can also be exported to the TRS and XTC formats

     

       
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for checking confluence and termination with external tools.

     

       
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Lambdapi does not come with a pre-defined logic. It is a

     

       
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powerful logical framework in which one can easily define

     

       
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its own logic and build and check proofs in this logic.

     

       
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There exist .lp files defining first or higher-order logic

     

       
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and complex type systems like in Coq or Agda.

     

       
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Lambdapi provides a basic module and package system,

     

       
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interactive modes for proving both unification goals

     

       
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and typing goals, and tactics for solving them step by step.

     

       
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In particular, a rewrite tactic like in SSReflect, and

     

       
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a why3 tactic for calling external automated provers through

     

       
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the Why3 platform."""

     

       
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maintainer: ["dedukti-dev@inria.fr"]

     

       
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authors: ["Deducteam"]

     

       
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license: "CECILL-2.1"

     

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opam-version: "2.0"

     

       
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synopsis: "Proof assistant for the λΠ-calculus modulo rewriting"

     

       
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description: """

     

       
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Lambdapi is an interactive proof assistant for the λΠ-calculus modulo

     

       
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rewriting. It can call external automated theorem provers via Why3.

     

       
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The user manual is on https://lambdapi.readthedocs.io/.

     

       
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A standard library and other developments are available on

     

       
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https://github.com/Deducteam/opam-lambdapi-repository/. An extension

     

       
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for Emacs is available on MELPA. An extension for VSCode is available

     

       
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on the VSCode Marketplace. Lambdapi can read Dedukti files. It

     

       
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includes checkers for local confluence and subject reduction. It also

     

       
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provides commands to export Lambdapi files to other formats or

     

       
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systems: Dedukti, Coq, HRS, CPF.

     

       
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"""

     

       
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maintainer: ["dedukti-dev@inria.fr"]

     

       
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authors: ["Deducteam"]

     

       
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license: "CECILL-2.1"