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Step * 1 1 2 of Lemma dual-plane_wf


1. pg : ProjectivePlaneStructureComplete
2. BasicProjectiveGeometryAxioms(pg)
3. triangle-axiom1(pg)
4. triangle-axiom2(pg)
⊢ TERMOF{pgeo-non-trivial-dual-ext:o, \\v:l, i:l} pg ∈ Line
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Latex:

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Latex:

1.  pg  :  ProjectivePlaneStructureComplete
2.  BasicProjectiveGeometryAxioms(pg)
3.  triangle-axiom1(pg)
4.  triangle-axiom2(pg)
\mvdash{}  TERMOF\{pgeo-non-trivial-dual-ext:o,  \mbackslash{}\mbackslash{}v:l,  i:l\}  pg  \mmember{}  Line


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Latex:
Auto

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