Re: [isabelle-dev] Theory for discrete log etc.

2016-11-22 Thread Thiemann, Rene
Dear all, thanks Manuel and Florian for pointing to other variants of discrete logarithms. I would like to mention a fairly recent one in AFP/Sqrt_Babylonian/Log_Impl.thy. It defines log_floor and log_ceiling :: “int => int => nat”. The advantage of these functions are improved code equations

Re: [isabelle-dev] Theory for discrete log etc.

2016-08-13 Thread Manuel Eberl
There's also natlog2 in src/HOL/Analysis/Summation_Tests.thy, which I introduced because I didn't know about the other ones. Manuel On 13/08/16 15:09, Florian Haftmann wrote: Hi all, after studying 28d1deca302e I realized that we have now two theories dealing with discrete functions (with on