619.9  Amount of proof.
  A party shall not be compelled to prove more than is necessary to entitle the party to the relief asked for, or any lower degree included therein, nor more than sufficient to sustain the party’s defense.
[R60, §2966; C73, §2729; C97, §3639; C24, 27, 31, 35, 39, §11181; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §619.9]