数学 すうがく基礎 きそ ろんじゃなかったです
sūgakukisoronjanakattadesu

Noun
Desu Copula

The polite, past negative form of 数学基礎論

1. Wasn't foundational mathematics.; Wasn't about the foundations of mathematics.

Past/Perfective
Negative
Polite
Casual Register