*To*: Gottfried Barrow <gottfried.barrow at gmx.com>*Subject*: Re: [isabelle] Thanks Nitpick for actually answering a former, simple question*From*: Lawrence Paulson <lp15 at cam.ac.uk>*Date*: Tue, 11 Sep 2012 21:55:47 +0100*Cc*: cl-isabelle-users at lists.cam.ac.uk*In-reply-to*: <504F99E9.8060608@gmx.com>*References*: <504F99E9.8060608@gmx.com>

I really don't understand what you mean. Bound variables are not logical statements. And whether a variable is free or bound has no bearing on whether or not it can appear as a function's argument. Larry Paulson On 11 Sep 2012, at 21:07, Gottfried Barrow <gottfried.barrow at gmx.com> wrote: > Like two months ago, I specifically asked, in a fairly precise way, "What's the difference between free variables and universally quantified variables, and is there a reason I shouldn't use free variables?" > > I will now give you a reasonably close, informal, one sentence answer. > > ANSWER: A universally quantified bound variable is a logical statement, where a free variable is an argument to a function.

**Follow-Ups**:**Re: [isabelle] Thanks Nitpick for actually answering a former, simple question***From:*Gottfried Barrow

**Re: [isabelle] Thanks Nitpick for actually answering a former, simple question***From:*Gottfried Barrow

**References**:**[isabelle] Thanks Nitpick for actually answering a former, simple question***From:*Gottfried Barrow

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