Preface.- Introduction.- Varieties and quasivarieties in general languages.- Equaclosure operators.- Preclops on finite lattices.- Finite lattices as Sub(S,∧, 1,����): The case J(L) ⊆ ���� (L).- Finite lattices as Sub(S,∧, 1,����): The case J(L) ̸⊆ ���� (L).- The six-step program: From (L, ����) to (Lq(����), Γ).- Lattices 1 + L as Lq(����).- Representing distributive dually algebraic lattices.- Problems and an advertisement.- Appendices.
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