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Claim ยท pairs 0.1.3
pairs^2 Turn a card
A move of pairs 0.1.3, in Pairs window.
- Id
pairs^2- Kind
- move
- Reads as
- proved
- Place
- Pairs window
^1 - Version
- 0.1.3
What you do
Click a face-down card.
What you see
The card turns face up. If it is the second card turned and the faces match, both stay up; if they don't, both turn back after a second, or at once when a third card is turned. A turned pair counts a move; the last match wins the game.
Evidence
| proved | sound press | Pairs.flipMove.press.sound |
| 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). | |
| seen | Not shown yet: a screenshot of the app shows it. A CI step will publish it (#95). | |
Where it's defined
- Declaration
Pairs.flipMove- Module
Pairs.Claims- Source
lean/Pairs/Claims.lean:71atv0.1.3- Statement
Pairs.flipMove.enabledPairs.flipMove.press.post- Statement hash
50bb258f79199b32
Ledger
pairs^2 is active in this version's claims.lock, statement 50bb258f79199b32. An id never moves or changes meaning.