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Def first_order.language.empty

Modification history

2022-02-16 11:53
src/model_theory/basic.lean
feat(model_theory/terms_and_formulas): Define satisfiability and semantic equivalence of formulas (#11928) …
Deleted first_order.language.emptyView on Github →
2021-06-08 19:13
src/model_theory/basic.lean
feat(model_theory/basic): First-order languages, structures, homomorphisms, embeddings, and equivs (#7754) …
Added first_order.language.emptyView on Github →