Whether in the state of innocence man would have been immortal?

Objections

Objection 1 : It would seem that in the state of innocence man was not immortal. For the term "mortal" belongs to the definition of man. But if you take away the definition, you take away the thing defined. Therefore as long as man was man he could not be immortal.
Objection 2 : Further, corruptible and incorruptible are generically distinct, as the Philosopher says (Metaph. x, Did. ix, 10). But there can be no passing from one genus to another. Therefore if the first man was incorruptible, man could not be corruptible in the present state.
Objection 3 : Further, if man were immortal in the state of innocence, this would have been due either to nature or to grace. Not to nature, for since nature does not change within the same species, he would also have been immortal now. Likewise neither would this be owing to grace; for the first man recovered grace by repentance, according to Wis. 10:2: "He brought him out of his sins." Hence he would have regained his immortality; which is clearly not the case. Therefore man was not immortal in the state of innocence.
Objection 4 : Further, immortality is promised to man as a reward, according to Apoc. 21:4: "Death shall be no more." But man was not created in the state of reward, but that he might deserve the reward. Therefore man was not immortal in the state of innocence.