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#isabelle

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Jesper Agdakx 🔸
Oh hey, Asterisk has an article on theorem provers, LLMs, and autoformalization (i.e. automatically turning math papers into formalized proofs). I still think this task is significantly more difficult than what some people seem to think, but who can really tell anymore at this point.

asteriskmag.com/issues/09/automating-math

#TheoremProvers #Coq #Lean #Isabelle
asteriskmag.comAutomating Math—AsteriskComputers can already help verify proofs. One day soon, AI may be able to come up with new ones.
#isabelle
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HoldMyType

Running the manual: an approach to high-assurance microkernel development
> the kernel is obviously a state
transformer, and hence, conveniently represented as a monad. This
choice is reaffirmed by the need for recoverable exceptions, which
are detailed in the next subsection. In fact, we will see that we want
to distinguish between code that may raise recoverable exceptions
and code that does not have that liberty. Hence, it is worthwhile
to use monad transformers as provided by the MTL in the Haskell
Hierarchical Libraries
> seL4 API includes several system calls that
attempt to manipulate a capability address space, which is a data
structure containing a sparse mapping from addresses to capabili-
ties. If one of these system calls fails to locate a specified capability,
it will generate a system call error that is returned to the caller. On
the other hand, a similar failure while searching for a capability that
is being directly invoked will generate a fault message that is sent
to the current thread’s fault handler; a failure while trying to trans-
mit a capability through a one-way communication channel will be
silently ignored when the receiver is unable or unwilling to receive
the capability.
> HOL is a logic of total functions and is as such not suitable to ex-
press the semantics of Haskell directly. It is however suitable to
describe the semantics of Haskell functions that always terminate
and that do not make essential use of laziness. The seL4 implemen-
tation consists of such functions.

#haskell #isabelle #sel4
portal.acm.org/citation.cfm?id

ACM ConferencesRunning the manual | Proceedings of the 2006 ACM SIGPLAN workshop on Haskell
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Jocelyn

#LeMonde : "Au #théâtre, le retour d’une #censure qu’on croyait évanouie"

"A la différence de #SylvieChalaye, l’universitaire #Isabelle# Barbéris ne fait pas de distinction : « Les #censures de #droite et de #gauche ont tendance aujourd’hui à se recouper…[autant] la censure qui défendrait la juste représentation de #minorités dominées » que « celle émanant de groupements d’intérêts #réactionnaires et #conservateurs »."

lemonde.fr/series-d-ete/articl

Le Monde · Au théâtre, le retour d’une censure qu’on croyait évanouie avec l’Italien Romeo CastelluciPar Joëlle Gayot
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Jesper Agdakx 🔸

My PhD student Sára and I are looking for people to participate in a study on usability aspects of interactive theorem provers. Please consider signing up!

Who? anyone who uses or has used an interactive theorem prover for whatever purpose

What? 90 - 120 minute interviews (possibly including a small think-aloud programming session)

When? interviews will be scheduled starting September 2024

Where? online (participants from anywhere are welcome)

We are hoping these interviews will help us determine how you interact with your theorem provers and to gain insights on how we can improve the user experience. We are interested in all aspects of interactive theorem provers, including but not limited to their design, their tooling, their libraries, and their documentation.

Sign up here: https://tudelft.fra1.qualtrics.com/jfe/form/SV_0UJKuqcWC9G4FEy

#Agda#Coq#Lean
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Achim D. Brucker

We have an exciting opportunity for PhD study with myself and Prof. Burkhart Wolff form the Université Paris-Saclay on developing a formal semantics for Go (lang) in Isabelle/HOL. This new 'double PhD' programme leading to a PhD award from both universities.
More information and application details at: exeter.ac.uk/study/pg-research and adum.fr/as/ed/voirproposition. (application deadline: 31st of March 2024). Please contact me for more details.
#Isabelle #PhD #FediHire #Golang #Verification #ITP #Semantics

www.exeter.ac.ukExeter Paris-Saclay Studentships | Postgraduate Study - PhD and Research Degrees | University of Exeter
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OpenBSD Now!

OpenBSD formal driver verification with SeL4. ~ Adriana Nicolae, Paul Irofti, Ioana Leustean.

arxiv.org/abs/2311.03585

arXiv.orgOpenBSD formal driver verification with SeL4The seL4 microkernel is currently the only kernel that has been fully formally verified. In general, the increased interest in ensuring the security of a kernel's code results from its important role in the entire operating system. One of the basic features of an operating system is that it abstracts the handling of devices. This abstraction is represented by device drivers - the software that manages the hardware. A proper verification of the software component could ensure that the device would work properly unless there is a hardware failure.In this paper, we choose to model the behavior of a device driver and build the proof that the code implementation matches the expected behavior. The proof was written in Isabelle/HOL, the code translation from C to Isabelle was done automatically by the use of the C-to-Isabelle Parser and AutoCorres tools. We choose Isabelle theorem prover because its efficiency was already shown through the verification of seL4 microkernel.
#IsabelleHOL#Isabelle
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