lemma A.8 Adding witnesses preserves consistency

open in the book · appendices/A-long-proofs.tex:1644 · p. 2795

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lemma A.8: Adding witnesses preserves consistencyA.8definition 3.82: Consistency, completeness, soundness3.82lemma A.11: Truth lemmaA.11proof : app:A-long-proofs@proof-6proofdefinition 3.80: Formal system3.80definition 3.7: Negation3.7definition A.5: Maximal consistentA.5theorem 3.84: Gödel's completeness theorem, 19303.84theorem 3.87: Gödel, 19313.87theorem 3.91: Tarski's undefinability of truth3.91definition A.9: The term structureA.9lemma A.7: Behaviour of a maximal consistent setA.7lemma A.10: lem:app-comp-welldefinedA.10theorem A.12: Model existenceA.12proof : app:A-long-proofs@proof-8proof

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typedirectionnode provenancewhere
depends_on Consistency, completeness, soundness declared appendices/A-long-proofs.tex:1657
depends_on Truth lemma declared appendices/A-long-proofs.tex:1776
proves app:A-long-proofs@proof-6 declared appendices/A-long-proofs.tex:1660