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What are parameters for the term "evidence" in evaluating knowledge ?

The broad idea I intend to understand is that
"what can be asserted without evidence can be dismissed without evidence"

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    Jan 14 2013: Evidence is scientifically collected and verified data that supports a point of view.

    A point a view with overwhelming evidence is called a scientific law. Laws can be asserted as true without any further effort.

    A point of view with substantial, but not overwhelming evidence is called a theory. You must back up this assertion with further logic or evidence before expecting others to agree with you.

    A point of view with little or no evidence is called a belief. It's fine to hold a belief yourself, but you cannot insist that others share it with you without bringing supporting evidence to the table with you.

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