Hint Resolve not_cong_2134 not_cong_1243 not_cong_2143
not_cong_3412 not_cong_4312 not_cong_3421 not_cong_4321 : cong.
Section T1_3.
Context `{Tn:Tarski_neutral_dimensionless}.

Lemma five_segment_with_def : forall A B C D A' B' C' D',
OFSC A B C D A' B' C' D' -> A<>B -> Cong C D C' D'.