加減 かげん作用 さよう ではありませんでした
kagensayō sodewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 加減作用素

1. Was not an operator of addition and subtraction.; Was not an operator for increasing and decreasing.

Past/Perfective
Negative
Polite
Formal Register
Computing