The first week of Transfiguration 101 requires an opinion piece on one component of Gamp's Law. Given below is Erin's analysis of the Life component.

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There have been several misconceptions that have been governing the minds of people, especially in earlier times before the laws were taught to students during their schooling. Some of these misconceptions are that food can be made out of thin air, or a person can be brought back to life. Even though the laws weren't present to let the magical people know, the restrictions were still present on such transfigurations, which frustrated the magical community since they had to work to get certain commodities. It is due to this that the term "mugglising" sprung up during the 12th century.

Since the origin of the laws is attributed to Hesper Gamp during the 19th century, the magical society of the 10th century would not have known about them, and hence more people would have been privy to the misconceptions. The modern society is more educated in such matters since students are taught during the early years of schooling that conjuring something out of thin air isn't possible. They wouldn't have to find out about it on their own by experimenting and think that they are lacking in magical ability because they aren't able to do so. However, it would still be a source of frustration due to the idea of "mugglising." 

One such law is that of life, which states that no spell can reawaken the dead or imbibe life into an object. However, this is not true if one doesn't have inhibitions with living a cursed life. An example of this would be the creation of horcruxes. If death can be defined as the destruction of a person's body, then these objects allow a person to come back to life due to parts of the person's soul being stored in different objects. But once again, it requires the presence of the soul, and isn't completely the generation of life out of nothing. But for people who don't consider such technicalities as worth noting, it would be the reawakening of the dead. There are also spells such as Avis and Orchideous which generate birds. However, those are merely magical entities taking on the intended form.

I think the reason that such spells claim to generate new forms of life is because the laws don't have a clear definition of what generating life means. Reanimating lifeless objects can also be seen as generating life, like inferi for example. But there could be an argument that such animated corpses, or the birds produced by Avis don't have a mind of their own and can't live a proper life. So then, what does the definition of life become? Something that has a mind and will? If that's the case, then mentally addled patients or people under the imperious can't be termed alive. I think that the definition of life is something necessary to remove loopholes in this law. 

Also, an extension of life is death. Life and death are said to always be in balance, with no magic being able to affect them. However, it is possible to drain the life out of someone by using the Avada Kedavra, but there isn't a spell to create life. So here, once again, I think there are various aspects that are not covered by the law. Maybe it could be said that life can be given or taken from some energy which is already present. That would explain the Avis spell as well as the Avada Kedavra, for magic would be the energy in the first and life energy in the second. Even horcruxes could then be explained, for the soul is an energy which is already present that imbues life once again.