Claim ยท pairs 0.1.3
pairs^27 No request is lost
An invariant of pairs 0.1.3.
- Id
pairs^27- Kind
- invariant
- Reads as
- proved
- Version
- 0.1.3
What it says
Every request Pairs makes (manifests, images, the scores file, the packs folder) is answered, cancelled or still awaited, exactly once; ids awaited are distinct and were issued. Cairn's runtime sends at most six network requests at a time and drops replies to cancelled ones.
Evidence
| proved | init | Pairs.noneLost.init |
| proved | step | Pairs.noneLost.step |
| proved | receive | Pairs.noneLost.receive |
| proved | reachable | Pairs.noneLost.reachable |
| proved | reachableAll | Pairs.noneLost.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
Pairs.noneLost- Module
Pairs.Claims- Source
lean/Pairs/Claims.lean:430atv0.1.3- Machine
Pairs.machine- Statement
Pairs.noneLost.holds- Statement hash
ac9c05a54e007e8c
Ledger
pairs^27 is active in this version's claims.lock, statement ac9c05a54e007e8c. An id never moves or changes meaning.