LEGO LEGO is an interactive proof development system (proof assistant). It implements various related type systems - the Edinburgh Logical Framework (LF), the Calculus of Constructions (CC), the Generalized Calculus of Constructions (GCC) and the Unified Theory of Dependent Types (UTT). LEGO is a powerful tool for interactive proof development in the natural deduction style. It supports refinement proof as a basic operation. The system design emphasizes removing the more tedious aspects of interactive proofs.

Current Version:   1.3.1 License Type:   ??

Home Site: http://www.dcs.ed.ac.uk/home/lego/ Source Code Availability: Yes Available Binary Packages: Debian Package: No RedHat RPM Package: Yes (from Home Site, a.out format) Other Packages: Yes (from Home Site, a.out format) Targeted Platforms: Linux Software/Hardware Requirements: SML/NJ platforms

Other Links: Proof General Mailing Lists/USENET News Groups: None User Comments: None See A Screen Shot? (Not Yet)

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