hypothesis; assumption; tentative theory
Used in academic, scientific, and everyday contexts for a provisional idea or explanation that is yet to be proven.
That hypothesis has not been proven yet.
彼は新しい仮説を立てて実験を行った。
He formulated a new hypothesis and conducted an experiment.
The hypothesis that the Earth is warming is widely discussed.
We ran an experiment to test the hypothesis.
The new data proved the hypothesis.
The results ended up refuting the hypothesis.
This theory is based on a certain hypothesis.
仮説 (same reading かせつ) means a hypothesis in argument or science, completely unrelated to 架設, which means physically erecting a structure.
null hypothesis
quantum hypothesis