*To*: cl-isabelle-users at lists.cam.ac.uk*Subject*: Re: [isabelle] Simple question about theory parameter*From*: Tobias Nipkow <nipkow at in.tum.de>*Date*: Mon, 23 Jul 2012 20:47:43 +0200*In-reply-to*: <500D4DA3.1080604@inf.ethz.ch>*References*: <500D4DA3.1080604@inf.ethz.ch>*User-agent*: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:14.0) Gecko/20120713 Thunderbird/14.0

Am 23/07/2012 15:12, schrieb Stephan van Staden: > Dear all, > > Here is a simplified version of my problem, which should have a simple answer. > > I wish to prove a bunch of theorems about an arbitrary set S of numbers that > contains a designated element, say 1. For example, S intersect S and S union S > will both contain 1, etc. > > Thereafter, I wish to get theorems for free about particular sets that contain > 1. For example, {1,2,3} intersect {1,2,3} contains 1, etc. > > What is the recommended way to do this in Isabelle? It sounds like locales could be the answer. Tobias > Thanks, > Stephan

**Follow-Ups**:**Re: [isabelle] Simple question about theory parameter***From:*Stephan van Staden

**References**:**[isabelle] Simple question about theory parameter***From:*Stephan van Staden

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