Require Export GeoCoq.Elements.OriginalProofs.lemma_inequalitysymmetric.
Require Export GeoCoq.Elements.OriginalProofs.lemma_3_7b.
Section Euclid.
Context `{Ax:euclidean_neutral_ruler_compass}.

Lemma lemma_partnotequalwhole :
forall A B C,
BetS A B C ->
~ Cong A B A C.