(1) Warrant: The Current Debate (2) Warrant and Proper Function (3) Warranted Christian Belief
In his first series of lectures, Plantinga surveys ideas surrounding the concept of ‘warrant’, defining it as that which distinguishes knowledge from true belief. In his second series, he establishes four criteria to judge if a belief has warrant and defends the claim that naturalism in epistemology requires supernaturalism in metaphysics. In his final series, he shows that it is rational to accept Christian belief and proposes ‘the Aquinas/Calvin Model’, arguing that Christian belief is ‘justified, rational, and warranted’.