Theorem FirstOrder.Language.Formula.semanticallyEquivalent_not_not

Modification history

2024-10-02 18:00
Mathlib/ModelTheory/Equivalence.lean
feat(ModelTheory/Equivalence): Implication of formulas modulo a theory (#16800) …
Deleted FirstOrder.Language.Formula.semanticallyEquivalent_not_notView on Github →
2024-09-17 09:07
Mathlib/ModelTheory/Equivalence.lean
chore(ModelTheory/Equivalence): Cleanup of `FirstOrder.Language.Theory.SemanticallyEquivalent` (#16799) …
Modified FirstOrder.Language.Formula.semanticallyEquivalent_not_notView on Github →
2023-05-25 08:25
Mathlib/ModelTheory/Satisfiability.lean
feat: port ModelTheory.Satisfiability (#3980)
Added FirstOrder.Language.Formula.semanticallyEquivalent_not_notView on Github →