Take the following as truth: The end was hastened by a man who made other Muslim invaders seem like pussy  the Mongol Timur the Lame, the  barbarous and bloody Tamburlaine,  later written about by Elizabethan playwright Christopher Marlowe.
Then the following statement: "Muslim invaders joined forces to help repel Tamburlaine." is true, false, or inconclusive?
Answer: Inconclusive