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From: Paul Rubin <no.email@nospam.invalid>
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Subject: Re: Why not Coq2Ada program extraction?
Date: Sun, 06 May 2018 19:37:26 -0700
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"Dan'l Miller" <optikos@verizon.net> writes:
> As it turns out Coq isn't the only one to have made progress in
> program-verification-based/proof-based
> decompilation/reverse-engineering of machine code.  Isabelle/HOL

The concept of "extraction" doesn't make as much sense with Isabelle
since it's not a programming language in the way Coq is.  You might like:

 http://concrete-semantics.org