道徳 どうとく てき証明 しょうめいじゃなかったです
dō tokute ki shōmeijanakattadesu

Noun
Desu Copula

The polite, past negative form of 道徳的証明

1. Wasn't morally proven.; Wasn't a moral proof.

Past/Perfective
Negative
Polite
Casual Register