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Claim ยท cairn_examples 0.2.0
cairn_examples^105 Items left
An invariant of cairn_examples 0.2.0.
- Id
cairn_examples^105- Kind
- invariant
- Reads as
- proved
- Version
- 0.2.0
What it says
The footer's count equals the number of items not done, and item ids stay distinct, in every reachable state.
Evidence
| proved | init | Examples.Basics.itemsLeft.init |
| proved | step | Examples.Basics.itemsLeft.step |
| proved | receive | Examples.Basics.itemsLeft.receive |
| proved | reachable | Examples.Basics.itemsLeft.reachable |
| proved | reachableAll | Examples.Basics.itemsLeft.reachableAll |
| fuzzed | Not shown yet: the claim-driven fuzzer held it in every random sequence (docs/fuzz.md). A CI step will publish it (#95). | |
| tested | Not shown yet: the running app matched the model at every step that exercised it (docs/conformance.md). A CI step will publish it (#95). | |
Where it's defined
- Declaration
Examples.Basics.itemsLeft- Module
Basics- Source
lean/Basics.lean:347atv0.2.0- Machine
Examples.Basics.machine- Statement
Examples.Basics.itemsLeft.holds- Statement hash
50c2cabcfdfc64a9
Ledger
cairn_examples^105 is active in this version's claims.lock, statement 50c2cabcfdfc64a9. An id never moves or changes meaning.