A formal proposition or statement, often used in academic, philosophical, or political contexts. Borrowed from German 'These'.
from German These
There is a thesis that "history repeats itself."
He presented a clear thesis at the beginning of his paper.
その哲学者のテーゼは多くの議論を呼んだ。
The philosopher's thesis sparked much debate.
彼は新しいテーゼを掲げて議論を始めた。
He put forward a new thesis and began the discussion.
I formulated a thesis as the starting point of my research.
I wrote the paper based on this thesis.
テーゼ means an intellectual thesis or proposition, while プロテーゼ (from German 'Prothese') means a medical prosthesis, and learners can mix them up because both end in 'テーゼ'.
Borrowed from German 'These', meaning thesis or proposition.