fact: Definition stn_right_compute (m n : nat) (i: ⟦n⟧ ) : pr1 (stn_right m n i) = m+i.
imports: UniMath.Foundations.NaturalNumbers UniMath.MoreFoundations.Tactics UniMath.MoreFoundations.DecidablePropositions UniMath.MoreFoundations.NegativePropositions