Rebuttal Evidence

"any evidence that repels, counteracts or disproves evidence given by a witness," 158 P. 2d 799, 803; "that which explains away, contradicts, or otherwise refutes the adverse party's evidence ‘by any process which consists merely in diminishing or negating the force' of it." 202 N.W. 896, 898. Rebuttal evidence is offered to contradict other evidence or to rebut a presumption of fact.