Step
*
of Lemma
euclid-P3-ext
∀e:EuclideanPlane. ∀A,B,C1,C2:Point. ∃E:Point. (A_E_B ∧ AE=C1C2) supposing (¬(C1 = C2 ∈ Point)) ∧ |C1C2| < |AB|
BY
{ Extract of Obid: euclid-P3
normalizes to:
λe,A,B,C1,C2. <e "extend" (e "extend" B A C1 C2) A C1 C2, let %2,%3 = e "Tdef" in %3 (λ%.Ax), e "Estable">
finishing with Auto }
Latex:
Latex:
\mforall{}e:EuclideanPlane. \mforall{}A,B,C1,C2:Point.
\mexists{}E:Point. (A\_E\_B \mwedge{} AE=C1C2) supposing (\mneg{}(C1 = C2)) \mwedge{} |C1C2| < |AB|
By
Latex:
Extract of Obid: euclid-P3
normalizes to:
\mlambda{}e,A,B,C1,C2. <e "extend" (e "extend" B A C1 C2) A C1 C2
, let \%2,\%3 = e "Tdef"
in \%3 (\mlambda{}\%.Ax)
, e "Estable">
finishing with Auto
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