Step
*
1
of Lemma
lattice-meet-eq-1
1. l : BoundedLattice
2. x : Point(l)
3. y : Point(l)
4. x ∧ y = 1 ∈ Point(l)
⊢ x = 1 ∈ Point(l)
BY
{ ((ApFunToHypEquands `Z' ⌜x ∨ Z⌝ ⌜Point(l)⌝ (-1)⋅ THENA Auto) THEN NthHypEq (-1) THEN EqCD THEN Auto) }
Latex:
Latex:
1. l : BoundedLattice
2. x : Point(l)
3. y : Point(l)
4. x \mwedge{} y = 1
\mvdash{} x = 1
By
Latex:
((ApFunToHypEquands `Z' \mkleeneopen{}x \mvee{} Z\mkleeneclose{} \mkleeneopen{}Point(l)\mkleeneclose{} (-1)\mcdot{} THENA Auto) THEN NthHypEq (-1) THEN EqCD THEN Auto)
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