I have a question.
what is the difference between premise and hypothesis and supposition?
and when to use each of them?
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To supplement TRomano's response, these are some examples you might consider:
Premise: The Earth moves around the Sun [hard fact].
Hypothesis: Because the Earth moves around the Sun and because we get days and nights, the Earth also rotates in its path. [Needs experimentation to verify, which makes it a hypothesis. Luckily it was already experimented with way back.]
Supposition: The Earth might be absorbed by a dead Sun billions of years into the future [No one knows for sure when, or if it will happen. But we do know the Sun will undergo a supernovae. Whether the Earth will still be around to be absorbed is another story].