Joseph F. Smith teaches that Adam became mortal and died, according to the edict of God; "Adam" also means "many," and faithful hope to do the same as Adam.
Joseph F. Smith, "Desirable Condition of the Saints—Characteristics of Prophets the Governing Power of God in Human Affairs—Man's Ingratitude Toward God—The Enlightening Power of God's Spirit—Man's Origin, Probation and Destiny—A Base Conception of the Object of Life—The Savior's Noble Example—The Source of True Happiness—Great Truths Revealed Through Joseph Smith—Eternal Associations and Destiny of the Saints—How to Attain to a Knowledge of the Things of Eternity," Journal of Discourses, 26 vols. (Liverpool: John Henry Smith, 1884), 25:58
Every soul that is born into the world will die. There is not a soul that has escaped death, except those upon whom God has passed, by the power of His Spirit, that they should live in the flesh until the second coming of the Son of Man: but they will eventually have to pass through the ordeal called death; it may be in the twinkling of an eye, and without pain or suffering; but they will pass through the change, because it is an irrevocable edict of the Almighty. "In the day that thou eatest thou shalt surely die." This was the edict of the Almighty, and it pertains to Adam—that is, all the human race; for Adam is many, and it means you and me and every soul that lives and that bears the image of the Father. We shall all die. But is that the end of our being? If we had an existence before we came here, we certainly shall continue that existence when we leave here.