* [Penn lambda calculator](http://www.ling.upenn.edu/lambda/) Pedagogical software developed by Lucas Champollion, Josh Tauberer and Maribel Romero.<p>
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* [[!wikipedia Moses Schönfinkel]]
* [[!wikipedia Haskell Curry]]
* [[!wikipedia Alonzo Church]]<p>
<http://people.cs.uu.nl/jeroen/article/combinat/combinat.ps>
* [Chris Barker's Iota and Jot](http://semarch.linguistics.fas.nyu.edu/barker/Iota/)<p>
+* [To Dissect a Mockingbird](http://dkeenan.com/Lambda/index.htm)
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## Evaluation Order ##
* [[!wikipedia Evaluation strategy]]