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∀[l:BoundedLattice]. ∀[b:Point(l)]. uiff(1 ≤ b;b = 1 ∈ Point(l))
{ ((UnivCD THENA Auto) THEN (RWO "lattice-le-iff" 0 THENA Auto)) }
1. l : BoundedLattice
2. b : Point(l)
⊢ uiff(b = 1 ∨ b ∈ Point(l);b = 1 ∈ Point(l))