On Thu, Mar 18, 2021 at 12:21 AM Imran Meah <imranmeah91@xxxxxxxxx> wrote:
I will attempt to answer this one but welcome more knowledgeable folks to chime in.It looks like you are asking why the range of i is not defined.Was the range of i defined before this statement? If yes then, the range definition will cary over when you invoke i.--On Wed, Mar 17, 2021 at 10:13 PM Pablo Fernandez <fernandezpablo85@xxxxxxxxx> wrote:I've been watching the videos on Lamport's TLA Course.On the DieHard problem he makes a statement on why is it important to specify a state completely:Here, he insists on adding /\ big' = big.Now, on the SimpleProgram exercise (the first one), Add is defined like this:Add == /\ pc = "middle"
/\ pc' = "done"
/\ i' = i + 1
My question is, if we need to specify the whole state space, shouldn't Add need to be defined this way instead?Add == /\ pc = "middle"/\ pc' = "done"
/\ i' = i + 1
/\ i \in 0..1000
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