Require Export GeoCoq.Elements.OriginalProofs.lemma_supplements.
Require Export GeoCoq.Elements.OriginalProofs.lemma_equalanglesreflexive.
Require Export GeoCoq.Elements.OriginalProofs.lemma_equalanglesflip.
Require Export GeoCoq.Elements.OriginalProofs.lemma_angleorderrespectscongruence.
Require Export GeoCoq.Elements.OriginalProofs.lemma_angleorderrespectscongruence2.
Section Euclid.
Context `{Ax:euclidean_neutral_ruler_compass}.

Lemma lemma_supplementinequality :
forall A B C D F a b c d f,
Supp A B C D F -> Supp a b c d f -> LtA a b c A B C ->
LtA D B F d b f.