We know how Scripture defines a FALSE prophet!
I thought the subject here was Mormon prophets.
I don't see your answer to my question, so I'll pose it again.
Do Mormon prophets normally let their listeners know when they are speaking inspired words or not?
Or is it left to future Mormon generations to make that determination based on the level of difficulty required to explain what was spoken by the prophet? (ref: Young's Adam-God speech, prophesies that the moon is inhabited)