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Lambda Calculus is a tiny functional language for expressing computation based on function abstraction and application.
This project is intended to be an educational resource for learning and implementing functional programming languages.
Introduction to Lambda Calculus
Introductory material is provided. They can be found at
More examples can be found in the test-suite, located at
A simple implementation of the untyped lambda calculus is included. It is written in Haskell and is implemented to be as easy to follow, at the possible expense of performance.
In order to build, you will need
- GHC >= 8
Once the program is installed, you simply run it:
This will open a repl (read-eval-print loop) prompt
Lambda Calculator (0.5.0) Type :h for help
You can start typing lambda calculus expressions and the program will evaluate them and print the result. Here are a few examples:
Lambda Calculator (0.5.0) Type :h for help λ > \x. x λx. x λ > (\x. x) n n λ > (\n f x. f (n f x)) (\f x. f (f x)) λf x. f (f (f x)) λ > :q
You can exit by typing the command :q.
In order to run the testsuite, run
Sean Gillespie [email protected]
This project is licensed under the MIT License. See [LICENSE](LICENSE)
*Note that all licence references and agreements mentioned in the lambda-calculator README section above are relevant to that project's source code only.