Require Export GeoCoq.Elements.OriginalProofs.lemma_collinear4.
Section Euclid.
Context `{Ax1:euclidean_neutral_ruler_compass}.

Lemma lemma_Pasch_outer2 :
forall A B C P Q,
BetS A P C -> BetS B C Q -> nCol B P A ->
exists X, BetS A X Q /\ BetS B P X.