The accurate representation of a term's distinguishing feature among the provided options is: A postulate is assumed to be true, and it does not have to be proven.
Here's a brief explanation of the terms for clarity:
- Postulate: A statement accepted as true without proof, serving as a starting point for further reasoning and arguments.
- Definition: A precise statement that explains the meaning of a term or concept.
- Conjecture: An unproven statement based on observations or reasoning that is believed to be true.
- Theorem: A statement that has been proven to be true based on previously established statements, such as postulates or other theorems.
So, the correct distinguishing feature corresponds to the description of a postulate.