A generalization of Riesz-Fischer's theorem.
Ichirô Amemiya · Journal of the Mathematical Society of Japan · 1953
L. Kantorovitch [1] has proved, generalizing Riesz-Fischer's theorem to an abstract form, that a normed semi.orderedlinear space is complete if the norm satisfies the following two conditions: (1) The norm is monotone complete, $i$ .$e.$ , every non.decreasing