Analyzed
2 days
ago.
based on code collected
2 days
ago.
Project Summary
Alfa is a successor of the proof editor ALF, i.e., an editor for direct manipulation of proof objects in a logical framework based on Per Martin-Löf's Type Theory. It allows you to, interactively and incrementally, define theories (axioms and inference rules), formulate theorems and construct proofs of the theorems. All steps in the proof construction are immediately checked by the system and no erroneous proofs can be constructed.
Alternatively, you can view Alfa as a syntax-directed editor for a small purely functional programming language with a type system that provides dependent types. In fact, the language is very similar to the functional language Cayenne by Lennart Augustsson.
In a Nutshell, Alfa...
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took an estimated 3 years of effort (COCOMO model)
starting with its first commit in April, 1996
ending with its most recent commit over 1 year ago
Project Security
Vulnerabilities per Version ( last 10 releases )
There are no reported vulnerabilities
Project Vulnerability Report
Security Confidence Index
Poor security track-record
Favorable security track-record
Vulnerability Exposure Index
Many reported vulnerabilities
Few reported vulnerabilities
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30 Day SummaryMar 23 2025 — Apr 22 2025
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12 Month SummaryApr 22 2024 — Apr 22 2025
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