(* Compatibility *)
Notation sym_JMeq := JMeq_sym (only parsing).
Notation trans_JMeq := JMeq_trans (only parsing).
(******************************************  The following is the original floyd/jmeq_lemmas.v  ******************************************)

Lemma eq_rect_r_eq_rect_r_eq_sym': forall {T} {A B: T} F x (H: B = A),
eq_rect_r F (eq_rect_r F x (eq_sym H)) H = x.