fact: Definition euclid_s_prop_1_22 := forall A B C D E F A' B' C' D' E' F', SumS A B C D E' F' -> SumS A B E F C' D' -> SumS C D E F A' B' -> Le E F E' F' -> Le C D C' D' -> Le A B A' B' -> exists P Q R, Cong P Q A B /\ Cong P R C D /\ Cong Q R E F.
imports: GeoCoq.Tarski_dev.Definitions