If you say a premise is acceptable support your position with one of the 5 conditions of premise acceptability (definition/logical truth, supported with a sub-premise, report/eyewitness testimony, common knowledge, authority of expert) .

How do you know if a premise is acceptable?

“A premise is relevant if its acceptance provides some reason to believe, counts in favor of, or has some bearing on the truth or merit of the conclusion. A premise is irrelevant if its acceptance has no bearing on, provides no evidence for, or has no connection to the truth or merit of the conclusion.”

What is the rule about premises?

one or more propositions, called premises, to a new proposition, usually called the conclusion. A rule of inference is said to be truth-preserving if the conclusion derived from the application of the rule is true whenever the premises are true.