| Quellcodebibliothek Statistik Leitseite products/Sources/formale Sprachen/Roqc/test-suite/failure/ (NIST Cobol Test-Suite ©) Datei vom 15.8.2025 mit Größe 405 B |
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Quelle proofirrelevance.vSprache: Coq |
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(* This was working in version 8.1beta (bug in template polymorphism), but this is inconsistent with classical logic in Prop *) Inductive bool_in_prop : Type := hide : bool -> bool_in_prop with bool : Type := true : bool | false : bool. Lemma not_proof_irrelevance : ~ forall (P:Prop) (p p':P), p=p'. intro H. Fail pose proof (H bool_in_prop (hide true) (hide false)). Abort. (*discriminate. Qed.*)
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2026-07-09