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