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Tag: verification

Specifying digital systems using sequential functions

November 23, 2025 vy vy papers

These papers introduce sequential functions for specifying digital systems  like operating systems and networks.  The mathematical basis comes from Moore machines, Moore machine products, and 

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A claimed validated operating system.

September 16, 2014 vy operating systems, systems

The claim: we have demonstrated the comprehensive formal verification of the seL4 microkernel, with a complete proof chain from precise, formal statements of high-level security

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State machines and circuits

January 17, 2010 yodaiken Uncategorized

The cross coupled latch is one of the greatest inventions of the 20th century State machine models of timing and circuit design

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Updated Dijkstra vs Perlis (really, DeMillo)

November 25, 2008 yodaiken software security

See below.

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Dijkstra versus Perlis (updated)

November 10, 2008 yodaiken academics, software security, theory

Dijkstra wrote: He [Perlis] published a very obnoxious paper arguing against a mathematical approach to programming cite The paper  by De Millo, Lipton and Perlis  starts as

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