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MergedContext.lean

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negative_controls/MergedContext.lean11 lines

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1 import ProofPath.ExtensionExamples
2 -- This is exactly the false negative-observation conjunct of the proposed
3 -- merged realization. Unfolding the contract is not itself a test failure.
4 example : ProofPath.ExtensionExamples.target.Extends ({()} : Set Unit) {()}
5     (fun _ => True) := by
6   refine ⟨?_, ?_, ?_⟩
7   · exact ⟨by intro v h; exact False.elim h, by intro j; exact Empty.elim j⟩
8   · intro _ _; trivial
9   · intro v hv
10     change ¬ True
11     decide

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