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Re: [tlaplus] TLC help

I am assuming that you refer to the model checking pane of the Toolbox. A "property" is a formula involving temporal operators that TLC can check (see section 14.2 of Specifying Systems) whereas an "invariant" is a state predicate that will be checked at every state.

Stephan

On 2 Jul 2019, at 12:22, MK Bug <android.ruba@xxxxxxxxx> wrote:

Hi,

I am new in TLA+ Please share the difference between the invariant and properties.

When to specify model using invariant and when to specify model using properties.

A detailed understanding is needed.

Thanks in advance for your help.

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