Require Export GeoCoq.Elements.OriginalProofs.lemma_lessthancongruence2.
Require Export GeoCoq.Elements.OriginalProofs.proposition_03.
Require Export GeoCoq.Elements.OriginalProofs.proposition_15.
Section Euclid.
Context `{Ax:euclidean_neutral_ruler_compass}.

Lemma lemma_pointreflectionisometry :
forall A B C P Q,
Midpoint A B C -> Midpoint P B Q -> neq A P ->
Cong A P C Q.