Section CoincR_for_cop.
Context `{TnEQD:Tarski_neutral_dimensionless_with_decidable_point_equality}.
Definition ss_ok_for_cop ss interp :=
@ss_ok Tarski_is_a_Arity_for_cop
Tarski_is_a_Coinc_predicates_for_cop ss interp.

Lemma st_ok_empty_for_cop : forall interp, st_ok_for_cop STempty interp.
Definition test_coinc_for_cop ss st (pa pb pc pd : positive) :=
@test_coinc Tarski_is_a_Arity_for_cop ss st (pa, (pb, (pc, pd))).