Tennessee Code Title 39. Criminal Offenses § 39-12-101

(1) Intentionally engages in action or causes a result that would constitute an offense, if the circumstances surrounding the conduct were as the person believes them to be;

(2) Acts with intent to cause a result that is an element of the offense, and believes the conduct will cause the result without further conduct on the person's part; or

(3) Acts with intent to complete a course of action or cause a result that would constitute the offense, under the circumstances surrounding the conduct as the person believes them to be, and the conduct constitutes a substantial step toward the commission of the offense.