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∀[l:BoundedLattice]. ∀[x:Point(l)]. ((0 ∨ x = x ∈ Point(l)) ∧ (x ∨ 0 = x ∈ Point(l)))
{ (Auto THEN D 1 THEN Auto) }
1. l : BoundedLatticeStructure
2. lattice-axioms(l)
3. bounded-lattice-axioms(l)
4. x : Point(l)
⊢ 0 ∨ x = x ∈ Point(l)