Pelagianism From http://www.carm.org/heresy/pelagianism.htm Semi-pelagianism From http://www.britannica.com/eb/article-9066710 The wikipedia defines semi-pelagianism this way, which I think is a bit more clear with respect to the role (or lack thereof) of grace in salvation: http://en.wikipedia.org/wiki/Semi-Pelagianism It seems to me that the only significant difference between pelagianism and semi-pelagianism is that the semi-pelagians say that the fall had an adverse affect on mankind. But the issue here isn't salvation. It's whether or not man has the innate ability to obey God's commands (the law). Beyond that, the actual soteriology seems to be exactly the same. In both cases, man can still take the initiative toward choosing salvation of his own free will, unassisted by God. Or am I missing something?