Dear list,

please find at https://github.com/aravantv/impconv the new version of my 
"implicational conversion" library for HOL Light.

It provides:

- many efficiency improvements and broader applications of IMP_REWRITE_TAC
(this tactic that I discussed a few times here, which takes a theorem of 
the form P ==> l = r and replaces l by r in a goal adding whatever it 
needs to make it work properly -- typically conjunction with P; but can 
also be an implication or even existentials)

- a new tactic called TARGET_REWRITE_TAC which is useful basically 
anytime you need to rewrite a theorem in a precise location or with a 
theorem which makes the rewriting diverge.

These two tactics, their use cases, and how they improve a lot over 
existing tactics is described in details in the user manual.
In practice, these two tactics are so useful that many proofs happen to 
be only combinations of them.
To demonstrate this, we provide a complete rewriting of a complex 
functions spaces library written by Mohamed Yousri Mahmoud and myself 
(which was presented at NFM2013) in the directory "example".

Regards,

-- 
Vincent Aravantinos, PhD
Analysis and Design of Dependable Systems
fortiss GmbH <www.fortiss.org/en>
Guerickestrasse 25 | 80805 Munich | Germany


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