Re: [isabelle-dev] [isabelle] the sound of a sledgehammer

2013-02-17 Thread Tjark Weber
On Fri, 2013-02-15 at 13:37 +0100, Tobias Nipkow wrote: * Sledgehammer spontaneously acts asynchronously of certain open problems in the text, depending on certain parameters like time outs. Triggering s/h via sorry (or some other explicit means) is perfectly reasonable, but having

Re: [isabelle-dev] [isabelle] the sound of a sledgehammer

2013-02-17 Thread Christian Urban
On Sunday, February 17, 2013 at 17:06:46 (+0100), Tjark Weber wrote: On Fri, 2013-02-15 at 13:37 +0100, Tobias Nipkow wrote: * Sledgehammer spontaneously acts asynchronously of certain open problems in the text, depending on certain parameters like time outs. Triggering

Re: [isabelle-dev] [isabelle] nat_code Equation

2013-02-17 Thread Florian Haftmann
In private conversation, there has been some confusion concerning this issue (stemming from the users mailinglist originally). Let me clarify, quoting the tutorial on code generation: -- Code_Binary_Nat implements type nat using a binary rather than a linear representation, which yields a

[isabelle-dev] Order Relations

2013-02-17 Thread Christian Sternagel
Dear Larry, Stefan, Tobias, and Andrei (as authors of the relevant Isabelle/HOL theories), already several times I stumbled upon the definition of Relation.refl_on (and thus also Order_Relation.Refl) and was irritated. What is the reason for demanding r = A * A? And why are other properties

Re: [isabelle-dev] [isabelle] the sound of a sledgehammer

2013-02-17 Thread Tobias Nipkow
Am 17/02/2013 19:41, schrieb Christian Urban: On Sunday, February 17, 2013 at 17:06:46 (+0100), Tjark Weber wrote: On Fri, 2013-02-15 at 13:37 +0100, Tobias Nipkow wrote: * Sledgehammer spontaneously acts asynchronously of certain open problems in the text, depending on