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Re: [tlaplus] Re: Checking implementation

Oh, even if they are different there is no need to change their names, but you will need to write a non-trivial refinement map (e.g. M1 ≜ INSTANCE M1 WITH y ← y*5, z ← z - w). If they are very different (the specs progress at different speeds etc.) you may need to add auxiliary variables to M2, which you'd use in the refinement mapping to calculate M2's y and z.

On Saturday, May 19, 2018 at 3:00:45 PM UTC+1, Pedro Paiva wrote:
Ok, so I should try with refinement maps. I did make it clear, but the variables y and z behave differently in M1 and M2, that's why I want to hide them. When TLC checks the property Spec => M1!Spec, it looks for variables with same names (in M1 and in M2) and compares their behaviors, is it correct? So my problem would be solved if I changed the names of y and z in module M1? Thanks