[Hol-info] [fm-announcements] RV-CuBES Deadline Extension

2017-07-03 Thread Havelund, Klaus (348B)
RV-CuBES An International Workshop on Competitions, Usability, Benchmarks, Evaluation, and Standardisation for Runtime Verification Tools Held in conjunction with the 17th International Conference on Runtime Verification (RV 2017) http://rv2017.cs.manchester.ac.uk/rv-cubes/ The goal of this w

[Hol-info] How to define "infinite sums" of custom datatypes?

2017-07-03 Thread Chun Tian (binghe)
Hi, Currently I have the following Datatype "(‘a, ‘b) CCS" which supports binary “sum” operation: val _ = Datatype `CCS = nil | var 'a | prefix ('b Action) CCS | sum CCS CCS ...`; I also have a recursive function for calculating

[Hol-info] Choosing an element from an infinite set according to an equivalence relation and a finite set?

2017-07-03 Thread Chun Tian (binghe)
Hi again ... Suppose I have the following things: 1. An equivalence relation R (|- equivalence R) for type ‘a 2. A ONE-ONE function f (:num->’a). It’s known that all its values are distinct according to R. 3. A finite set J of values of the same type. What theorems could assert the existence of